When planning a trip to the vibrant city of London, understanding the weather in September in London England is absolutely essential. But what exactly can you expect from the changing skies during this transitional month? Is it still warm enough to enjoy outdoor attractions, or should you be prepared for sudden showers and cooler evenings? In this comprehensive guide, we’ll uncover everything you need to know about the typical September weather in London, helping you pack smart and plan your itinerary perfectly.
September marks the beginning of autumn in London, bringing a unique blend of mild temperatures and unpredictable weather patterns. While summer’s heat starts to fade, the city often enjoys pleasantly warm days with an average temperature hovering around 18°C. However, don’t be fooled – you might also encounter occasional rain showers or chilly breezes, so having a versatile wardrobe is a must. Curious about how this impacts popular events and outdoor activities? The weather in London England during September can influence everything from sightseeing to dining al fresco, making it crucial for visitors to stay informed.
So, what’s the best way to prepare for your September visit? From exploring iconic landmarks under clear blue skies to navigating sudden drizzles with ease, understanding the London September climate can transform your experience. Keep reading to discover insider tips, real-time weather insights, and smart packing advice that will help you make the most of your autumn adventure in one of the world’s most exciting cities. Ready to unlock the secrets of London’s September weather? Let’s dive in!
What Is the Typical Weather in London England in September? A Detailed Climate Breakdown
What Is the Typical Weather in London England in September? A Detailed Climate Breakdown
London in September is a bit of a mystery to many who planning their trip or just curious about the weather patterns. You might heard that summer is ending but the warmth still lingers, or you might think it’s already chilly and rainy. So what really happens with the weather in September in London England? This article will try to uncover what to expect, with a detailed climate breakdown based on historical data and practical observations.
Weather In September In London England: Discover What To Expect
September is often considered a transition month for London. The city slowly leaves behind the hot summer days and moving towards cooler autumn times. However, the weather can be quite unpredictable and sometimes you get a surprise sunny day or a sudden rain shower.
- Average temperature usually ranges between 13°C (55°F) to 20°C (68°F).
- Early September tends to be warmer than the later part of the month.
- Rainfall is moderate but can happen anytime during the month.
- Daylight hours start to decrease, with around 13 hours of daylight early in September, dropping to about 11 hours by the end.
Typical Temperature and Rainfall Patterns
When looking at temperature, London in September often feels pleasant, but it can be a bit inconsistent. Some days are perfect for outdoor activities, while others might be cool and damp.
Here’s a simple table showing average temperature and rainfall for London in September:
| Parameter | Average Value | Notes |
|---|---|---|
| Max Temperature | 20°C (68°F) | Usually in early September |
| Min Temperature | 13°C (55°F) | Towards end of the month |
| Rainfall | 43 mm | Spread over 9-10 days |
| Sunshine Hours | 5-6 hours/day | Can vary significantly |
September doesn’t usually bring very heavy rain, but the chance of showers is higher than in July or August. It’s wise to carry a light waterproof jacket or an umbrella just in case.
How September Compares to Other Months in London
To understand September better, it helps to compare it with adjacent months. August is usually warmer with less rain, while October starts to get colder and wetter.
- August average max temp: 22-23°C (72-73°F)
- August rainfall: About 39 mm, fewer rainy days
- October average max temp: 15-16°C (59-61°F)
- October rainfall: Around 50 mm, more frequent rain
So, September sits right in between, offering a balance of mild warmth and increasing chance of rain.
Historical Context: September Weather Trends in London
Historically, September has been a month with quite diverse weather in London. Some years see extended warm spells that make it feel almost like summer again, while other years bring early signs of autumn chill.
- In 2018, London experienced a heatwave with temperatures reaching up to 30°C (86°F) in early September.
- Conversely, in 2019, a cool and wet September was recorded with several days of continuous rain.
- Over the last century, the average temperature in September has gradually increased, reflecting broader climate change trends.
This variability means you shouldn’t rely solely on averages but prepare for a range of conditions.
Practical Tips For Visitors and Locals Alike
If you planning a trip to London in September or just want to know what clothes to wear, here are some practical tips:
- Layering is key: Mornings and evenings can be cool while afternoons are warmer.
- Always have a waterproof item: Rain can happen at any time.
- Sun protection still matters: UV levels can be moderate.
- Check the forecast daily: Weather can change quickly.
- Enjoy outdoor events: September often hosts festivals and outdoor markets benefiting from generally pleasant weather.
A Quick Look: Weather Checklist For September In London
- Daytime temperature: 15-20°C (59-68°F)
- Nighttime temperature: 9-13°C (48-55°F)
- Rain probability: Medium (about 9-10 rainy days)
- Sunshine: 5-6 hours per day
- Wind: Light to moderate breezes
Examples of September Weather Impact on London Life
- Outdoor cafes and parks still bustling because many days are still warm enough.
- Commuters start switching from summer clothes to jackets.
- Tourists often find the city less crowded than in July and August but still enjoyable.
- Gardeners start to prepare for autumn planting as the growing season slows down.
Even though September is not the peak season for London’s weather, it’s a month full of charm and surprises. The mild temperatures make it perfect for exploring city sights without the summer crowds. Yet the increasing chance of rain means you better be ready for a
How to Prepare for September Weather in London: Top Tips for Tourists and Locals
September in London can be a bit of a mystery, even for those who living there all year round. The weather tends to be unpredictable, and many tourists don’t really know what they should pack or expect when they visiting. If you’re planning a trip to the British capital or just want to prepare yourself for the changing season, here’s a guide on how to prepare for September weather in London — with tips for both locals and visitors.
Weather in September in London England: Discover What to Expect
September marks the start of autumn in the UK, but London still holds onto some late summer vibes. The temperature usually ranges from around 13°C (55°F) in the mornings and evenings, to about 20°C (68°F) during the day. However, it can sometimes drop below or rise above those averages, which makes it a bit tricky to dress for.
Rain is also a common visitor in London throughout the year, and September is no exception. On average, London receives about 40 to 50 mm of rainfall during the month, spread across approximately 10 to 12 days. So you might find yourself needing an umbrella one day and sunglasses the next. The days are getting shorter too — by the end of September, the sun sets around 7 pm, which is quite early compared to summer months.
Historically, September has been known for having some of the more pleasant weather in London. It’s after the peak summer crowds and before the colder, wetter months fully set in. But don’t let that fool you into thinking it’s always warm and dry. The city’s maritime climate means weather can change fast and without much warning.
How to Dress for September Weather in London
One of the biggest challenges with September weather is layering. You might start your day chilly, but by afternoon, it feels warm enough for short sleeves. Or vice versa — it could seem sunny and nice outside but suddenly a cold breeze comes through.
Here’s a simple packing list for what to wear in September:
- Light waterproof jacket or raincoat (something that won’t be too hot but protects from rain)
- Long-sleeve tops and T-shirts for layering
- A couple of sweaters or cardigans for cooler moments
- Comfortable walking shoes that can handle wet pavements
- An umbrella (compact size recommended)
- Jeans or trousers (shorts aren’t usually practical this month)
- A scarf for evenings or windy days
Comparing September Weather to Other Months
To put it into perspective, here’s a brief comparison of London’s weather in September against July and November:
| Month | Avg High Temp | Avg Low Temp | Rainfall (mm) | Daylight Hours |
|---|---|---|---|---|
| July | 24°C | 15°C | 45 | ~16 hours |
| September | 20°C | 13°C | 45 | ~12 hours |
| November | 10°C | 5°C | 55 | ~8 hours |
From this, you can see September is milder than November but cooler than July. Rainfall is roughly similar between July and September, so carrying rain gear is always a good idea.
Practical Tips for Tourists and Locals Alike
Whether you are a New Yorker visiting London or a Londoner yourself, these tips might help you deal with the quirks of September weather:
- Check the forecast daily: London’s weather apps and websites can be quite accurate in short term, but always be ready for sudden changes.
- Use layers: It’s easier to take off or put on clothing than to be stuck in something inappropriate for the temperature.
- Plan indoor and outdoor activities: Museums, galleries, and theatres are perfect fallbacks when rain spoils your outdoor plans.
- Stay hydrated: Cooler weather sometimes makes us forget to drink enough water, but it’s still important.
- Book accommodation with heating options: Some older London buildings might have poor heating systems, so check before you reserve.
Historical Weather Patterns in London in September
Looking back over the last century, London has seen some surprisingly warm Septembers, with occasional heatwaves pushing temperatures above 30°C (86°F). Conversely, there have been years where September felt more like late autumn, with frosty mornings and persistent rain. This variability is due to London’s position and climate influences — it lies in a temperate maritime zone, meaning it’s influenced by the Atlantic Ocean, which can bring moist, cool air or warm, dry spells.
For example, September 2016 was notably warm and dry, one of the sunniest on record. On the other hand, September 2012 was cooler and wetter, with several days of heavy rain. So, past weather trends show that it’s best to be prepared for anything when you in London during this month.
What Activities Suit September
7 Surprising Weather Facts About London in September You Need to Know
London in September is often seen as a mild transition from summer to autumn, but the weather there can be far more surprising than most people expect. If you are planning a trip or just curious about how the weather acts in this historic city during early autumn, you might want to read on. The weather in September in London, England, has some quirks and facts that might catch you off guard. From unexpected temperature swings to rainfall patterns, here are 7 surprising weather facts about London in September you need to know.
1. September Can Still Feel Like Summer Sometimes
Even though September is technically an autumn month, London often experiences summer-like warmth during this time. Average high temperatures hover around 19°C (66°F), but on some days, it can climb above 25°C (77°F), making it feel like a proper summer day. This is partly because the city holds onto heat from the long summer days, and sometimes warm air masses from continental Europe drift in.
- Average high temperature: 19°C (66°F)
- Occasional highs above 25°C (77°F)
- Warm days can last until mid-September or even later
So if you pack only autumn clothes, you might find yourself sweating on some afternoons.
2. Early September Often Has More Sunshine Than Later in the Month
People often think September is gloomy and overcast, but surprisingly, the first two weeks usually enjoy more sunshine hours than October or November. London gets about 5 to 6 hours of sunshine per day early in the month. However, as the month progresses, daylight shortens rapidly, and cloud cover increases.
Sunshine hours in September (approximate):
- Early September: 5.5 to 6 hours/day
- Late September: 4 to 5 hours/day
This means visitors arriving early in September might get some lovely sunny strolls along the Thames or in Hyde Park before the greyer days set in.
3. Rainfall Is Unpredictable and Often Comes in Short Bursts
While London is famous for its rainy reputation, September rainfall is not as constant as many believe. In fact, the city tends to get around 40 mm (1.6 inches) of rain during the entire month, spread unevenly over roughly 10 rainy days. What’s more, rain showers are often brief and scattered, so you might get a sudden downpour followed by clear skies.
Rainfall facts for September:
- Total monthly rainfall: approx. 40 mm
- Rainy days: about 10 on average
- Showers are usually short and sporadic
It’s wise to carry a small umbrella or a light raincoat, but don’t expect non-stop rain.
4. Temperature Fluctuations Can Be Drastic Between Day and Night
One of the lesser-known facts about London’s September weather is how much the temperature can shift from daytime to night-time. Daytime highs near 19°C can drop to lows around 11°C (52°F) by early morning. This means you might enjoy a warm afternoon, but feel quite chilly when the sun goes down.
Temperature range in London, September:
- Daytime high: around 19°C (66°F)
- Night-time low: around 11°C (52°F)
Packing layers is key because a T-shirt in the afternoon may not be enough for evenings.
5. London Experiences Less Fog Than In Winter, But Mornings Can Still Be Misty
Fog is often associated with London’s classic image, but September doesn’t see the dense fog that winter brings. However, you can still encounter misty or hazy mornings, especially in parks and near the river. This light fog usually clears by mid-morning once the sun warms the air.
- Dense fog is rare in September
- Misty mornings happen, mostly early hours
- Mist tends to lift quickly during the day
So don’t be surprised if your morning walk starts with a dreamy, misty atmosphere.
6. The Wind Usually Calms Down Compared to Summer Months
Summer in London sometimes brings breezy or gusty conditions, but by September, the wind tends to settle down. Average wind speeds decrease a bit, making the weather feel calmer and more pleasant for outdoor activities. This reduction in wind also contributes to those warmer, sunny days feeling more comfortable.
Wind speed in London:
- August average: approx. 13 km/h (8 mph)
- September average: approx. 10 km/h (6 mph)
A lighter breeze means less need for windproof jackets but still be prepared for occasional gusts.
7. Historical Weather Patterns Show September Can Be Quite Changeable
Looking back over decades of weather records, September in London is known for being a month of change. It’s neither fully summer nor fully autumn, so sudden shifts between warm and cool, dry and
September Rainfall and Temperature Trends in London England: What to Pack for Your Trip
September in London, England, is famously unpredictable when it comes to weather, making it a bit of a puzzle for those planning a visit. If you thinking about travelling to this iconic city during early autumn, knowing what to expect in terms of rainfall and temperature is crucial. The shifting climate patterns, combined with London’s unique geography, create a weather scenario that demands some preparation, especially when packing your suitcase. This article will explore the trends of September’s rainfall and temperature in London, help you understand what kind of clothing and accessories to bring, and provide some useful comparisons to make your trip less stressful.
September Rainfall Trends in London
London’s weather during September is often described as variable, with frequent changes throughout the day. Historically, September is not the wettest month for London, but does see a fair share of rainy days. On average, London receives about 43mm of rainfall in September spread across roughly 11 rainy days. This means you can expect a bit of drizzle or light showers nearly every third day.
- Average rainfall: 43mm
- Number of rainy days: ~11
- Typical rain type: Light showers, occasional heavier bursts
- Rainiest decade in recent history: 2010s, with some years showing above-average rainfall
It’s important to note that rain in London seldom lasts very long. Usually, showers pop up and disappear quickly, allowing for dry spells in between. Visitors often find it helpful to carry a compact umbrella or a lightweight waterproof jacket rather than bulky rain gear.
Temperature Patterns During September
Temperature in London during September is mild but can be somewhat inconsistent. The average daily high temperature is around 19°C (66°F), while the average low hovers near 12°C (54°F). However, these averages don’t tell the whole story – some days might feel like summer’s last breath with highs reaching above 23°C (73°F), while others might be chillier, especially in the evenings.
Here’s a brief temperature overview for September in London:
- Average high: 19°C (66°F)
- Average low: 12°C (54°F)
- Warmest temperatures can peak around 23°C (73°F)
- Cooler nights drop near 10°C (50°F)
The temperature difference between day and night means layering clothes is a smart move. Early September might still feel quite warm, but towards the end of the month, it starts feeling more like autumn proper.
Historical Weather Context
Looking back over the past few decades, London’s September weather has shown some shifts due to climate changes. While traditionally September would be a transition month from summer to autumn, recent years have seen warmer days and sometimes less predictable rainfall.
- 1980s-1990s: Generally cooler and more stable
- 2000s onward: Increasingly warmer days, occasional heatwaves
- Rainfall pattern: Slightly more sporadic, but total precipitation remains steady
This historical insight helps travellers anticipate what kind of weather they might face, acknowledging London’s tendency for surprise showers and fluctuating temperatures.
What To Pack For London In September
Given the variability in both rainfall and temperature, packing for a September trip to London can be tricky. Here’s a practical packing list that covers most weather scenarios you might encounter:
- Lightweight waterproof jacket or raincoat
- Compact umbrella
- Layered clothing (t-shirts, long-sleeved shirts, sweaters)
- Comfortable walking shoes (preferably water-resistant)
- A warm jumper or fleece for cooler evenings
- Jeans or trousers rather than shorts
- A scarf or light hat (for wind or sudden chills)
You might ask, “Do I really need heavy winter coats?” The answer is no, September is generally not cold enough for heavy winter wear, but having something warm for evenings is wise.
Comparing September Weather To Other Months
How does September stack up against other months in London? Let’s see a simple comparison to better understand:
| Month | Average High Temp | Average Rainfall | Rainy Days |
|---|---|---|---|
| August | 22°C | 45mm | 12 |
| September | 19°C | 43mm | 11 |
| October | 15°C | 49mm | 14 |
| November | 10°C | 53mm | 17 |
From this table, you can notice that September is a bit cooler than August but still relatively mild. Rainfall slightly decreases from August to September, but October and November get wetter and colder. So, September is kind of a sweet spot for those wanting to avoid winter’s chill but also not dealing with intense summer heat.
Practical Examples For Your Trip
Imagine you are planning a day out visiting London’s famous landmarks like the Tower of London or Buckingham Palace. Morning might be sunny and warm enough for a light shirt, but by afternoon, a quick rain
Exploring London in September: How Weather Affects Outdoor Activities and Events
Exploring London in September: How Weather Affects Outdoor Activities and Events
London in September offers a curious blend of summer’s lingering warmth and autumn’s early chill. For visitors and locals alike, the weather plays a big role in shaping what kind of outdoor activities and events they can enjoy. But if you are coming from New York, or anywhere else, it’s good to know what to expect from the weather in September in London, England before packing your bags or making plans.
Weather in September in London England: Discover What to Expect
September is often considered one of the best months to explore London because the crowds begin to thin after the busy summer months, yet the weather usually remains mild. However, it’s not always predictable. Some days can be surprisingly warm and sunny, while others turn out cool and rainy without much warning.
Typical weather in London during September looks like this:
- Average high temperature: 19°C (66°F)
- Average low temperature: 12°C (54°F)
- Average rainfall: 43 mm
- Daylight hours: Around 12 to 13 hours per day
The temperature drops gradually compared to August, which often brings hotter days. But don’t expect crisp autumn air just yet; September is still transitional month. Rain is common but not constant, so you might get a few showers or drizzles scattered throughout the day.
How Weather Influences Outdoor Activities in London
Because September weather is quite changeable, planning outdoor activities requires some flexibility. For example:
Parks and Gardens: London has many famous green spaces like Hyde Park, Regent’s Park, and Kew Gardens. In September, these areas still hold onto their summer greenery, but some trees start showing early signs of autumn colours. If the day is sunny, it’s perfect for picnics or boat rides on the Serpentine. But a sudden rain might force you to seek shelter or switch to indoor attractions.
Walking Tours: Many visitors enjoy walking tours through historic parts of London, such as the City, Westminster, or along the South Bank. Mild temperatures make these tours pleasant, but an umbrella or waterproof jacket is a must because showers can appear unexpectedly.
Outdoor Markets: Borough Market, Camden Market, and Portobello Road Market continue to thrive in September. Outdoor stalls and street food vendors benefit from the moderate weather, attracting crowds who want to eat al fresco or shop for unique goods.
Cycling and River Activities: The Thames and surrounding parks offer opportunities for cycling and boat trips. When weather is clear and dry, these activities are delightful. But a wet day might mean muddy paths and choppy river waters, so it’s better to check forecasts closely.
Events in London During September and Their Weather Considerations
London’s cultural calendar in September is bustling, and many events rely on outdoor settings or partly outdoor venues. Weather can influence their experience greatly.
Totally Thames Festival: Celebrating the River Thames, this month-long event includes art, music, and boat races. Many activities happen outside, so weather condition might affect attendance and enjoyment.
Open House London: Usually held in mid-September, this event lets people explore buildings usually closed to the public. While many locations are indoors, some tours and exhibitions take place outside, so dress accordingly.
London Design Festival: Although mostly indoors, some installations are found outdoors, especially in public squares. Rain or wind can disrupt these, but the festival adapts well.
Film and Theatre: September starts the new season for theatre and outdoor cinema screenings, such as those in Somerset House or Regent’s Park Open Air Theatre. Cooler evenings mean bringing warmer clothes if you attend outdoor shows.
Comparing London September Weather With New York
If you’re coming from New York, you might wonder how London’s September weather stacks up against what you’re used to.
Temperature: New York usually remains warmer in September, especially early in the month, often hitting highs above 25°C (77°F). London is generally cooler and less humid.
Rainfall: Both cities receive similar amounts of rain, but London’s rain is often lighter and more frequent drizzles, whereas New York might get heavier showers or thunderstorms.
Daylight: London’s daylight hours start to shorten faster than New York’s in September, so evenings get darker earlier.
This means you might find London’s climate more comfortable for walking and outdoor exploring, but should still prepare for cooler, damper days than back home.
Practical Tips for Visitors Based on London September Weather
To make the most of your time in London during September, consider these recommendations:
- Pack layers: Bring t-shirts and light sweaters, but also a warm jacket for cooler mornings and evenings.
- Always carry a compact umbrella or a waterproof coat to stay dry during sudden showers.
- Comfortable waterproof shoes are a good idea, especially if you plan to walk
Conclusion
In summary, September in London offers a delightful transition from the warmth of summer to the crispness of autumn, with average temperatures ranging from 13°C to 20°C. The city experiences moderate rainfall, so it’s wise to carry an umbrella or a light waterproof jacket when exploring. Daylight hours gradually shorten, but there’s still plenty of time to enjoy outdoor activities, from strolling through Hyde Park’s changing foliage to visiting iconic landmarks without the heavy summer crowds. Whether you’re a local planning your wardrobe or a visitor scheduling your trip, understanding September’s weather helps ensure a comfortable and enjoyable experience. So, embrace the mild climate and unpredictable showers by packing smartly and stepping out to discover London’s unique charm this September. Don’t forget to check the forecast regularly to make the most of your time in this vibrant city.












