Greater London (London)
Today
Today weather in Greater London
Sunday, 20th September 2026
20°
Overcast
Feels like 15° · Low 15°
Mild temperatures are expected in Greater London Today, peaking at around 19 °C and dropping to 15 °C by night. It'll be quite breezy in Greater London Today with average wind speeds of 19 km/h. There's a slight chance of rain at 13%.
20° / 15°
Temp
13%
Rain
19 km/h
Wind
55%
Humidity
Greater London Weather Pages
Greater London hourly forecast for today
Scroll right to see more weather forecasts for Greater London today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 06:43 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 19:04 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  |  | | | | | |  | | | | | | | | |  | | | | |  |  | |  |  | Next |
| temperatures | 18° | 17.7° | 17.5° | 17.3° | 17.1° | 16.7° | 16.2° | Sunrise | 15.7° | 15.6° | 15.9° | 16.7° | 16.7° | 16.9° | 17.5° | 18.8° | 19.5° | 19.8° | 19.3° | 18.8° | 17.7° | Sunset | 17° | 16.3° | 15.7° | 15.1° | |
| Feels like | 15.3° | 15.3° | 15.4° | 15.2° | 14.7° | 14.3° | 13.9° | 13.4° | 13° | 12.4° | 13° | 12.8° | 13.2° | 13.6° | 14.6° | 15.2° | 15.4° | 15.3° | 15.1° | 14.8° | 14.3° | 13.9° | 13.4° | 12.8° | |||
| wind speed | 20 km/h | 18 km/h | 16 km/h | 15 km/h | 16 km/h | 15 km/h | 14 km/h | 13 km/h | 14 km/h | 17 km/h | 16 km/h | 17 km/h | 15 km/h | 15 km/h | 16 km/h | 15 km/h | 14 km/h | 13 km/h | 11 km/h | 8 km/h | 7 km/h | 5 km/h | 5 km/h | 5 km/h | |||
| wind degree | 261° | 265° | 264° | 258° | 275° | 278° | 284° | 289° | 288° | 298° | 302° | 309° | 304° | 301° | 296° | 298° | 307° | 312° | 316° | 306° | 300° | 316° | 320° | 338° | |||
| wind direction | W | W | W | WSW | W | W | WNW | WNW | WNW | WNW | WNW | NW | NW | WNW | WNW | WNW | NW | NW | NW | NW | WNW | NW | NW | NNW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 21% | 23% | 21% | 20% | 20% | 20% | 20% | 19% | 18% | 15% | 13% | 12% | 12% | 11% | 9% | 5% | 10% | 10% | 10% | 10% | 3% | 2% | 2% | 9% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 76% | 76% | 74% | 74% | 73% | 73% | 73% | 72% | 70% | 62% | 55% | 52% | 50% | 45% | 39% | 34% | 32% | 32% | 34% | 38% | 41% | 43% | 45% | 48% | |||
| dew point | 13.7° | 13.4° | 12.9° | 12.6° | 12.2° | 11.8° | 11.3° | 10.7° | 10.2° | 8.7° | 7.6° | 6.9° | 6.5° | 5.6° | 4.5° | 3.4° | 2.6° | 2.4° | 2.8° | 3.1° | 3.6° | 3.8° | 3.9° | 4.1° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 95% | 63% | 100% | 100% | 100% | 100% | 41% | 26% | 8% | 83% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.6 | 1.3 | 1.4 | 2.2 | 3.2 | 3.2 | 2.7 | 1.5 | 0.8 | 0.2 | 0 | 0 | 0 | 0 | 0 |
View of Greater London today
Explore Greater London live webcam feed to see how the weather is shaping up today in Greater London. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from Greater London today.
Weather in Greater London today
The temperature today in Greater London is expected to be typical for this time of year, with a forecast of 20 °C, closely aligning with the historical average for 20th of September.
temperatures
20 °C
rain
0 mm
wind
19 km/h
UV
Moderate
🌫️ Air quality, UV & pollen - Greater London Live AQI, UV index and pollen levels. Air Quality →
Greater London Today Weather Indexes for Outdoor Activities & Health
Live indexes for outdoor activities, pollen allergies, air quality (AQI), UV index and health in Greater London - Sunday, 20th September 2026
UV Sun Exposure Risk
Moderate
3 / 11+
Air Quality Index (AQI)
Excellent
10 / 10
Pollen Allergy Risk
Very High
10 / 10
Asthma Risk Index
Low
3 / 10
Arthritis Pain Index
Low
3 / 10
Outdoor Activity Index
Excellent
10 / 10
Running & Jogging Index
Excellent
9 / 10
Cycling Weather Index
Excellent
9 / 10
Pet Walking Index
Excellent
10 / 10
Gardening Weather Index
Excellent
9 / 10
Photography Light Index
Fair
5 / 10
Driving & Road Safety
Excellent
9 / 10
Construction Work Index
Excellent
10 / 10
Greater London daylight overview ☀️
Today in Greater London, The sun rises at 06:43 and sets at 19:04, giving a total daylight duration of 12 hours and 21 minutes.
Top locations in Greater London
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More Greater London weather pages
What to wear today in Greater London? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Greater London forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
The weather today in Greater London - FAQ
What is the maximum temperature for today in Greater London?
The maximum temperature for today in Greater London is expected to be 20° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Greater London? 🌧️
Yes, there is a 13% chance of rain in Greater London today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Greater London? 🌀
The wind in Greater London is expected to blow at 19 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Greater London today?
Given the forecast of 20 °C with a 13% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Greater London today.
What is the sunrise and sunset time for Greater London today?
The sun is expected to rise at 06:43 and set at 19:04 in Greater London.
How accurate is the weather forecast Greater London today? ✅
Greater London weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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