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Forecast confidence: High · models disagree by 1°C

London weather

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Cloudy,much the same tomorrow

Met Office, the European and the American model agree on a high near 26° in London today. Tomorrow looks cloudy around 23°, with a 12% chance of rain.

26°15°
23°18°
20°15°
20°12°
19°13°
22°16°
Todaymodels agreeTomorrowmodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±2°Fridaymodels agree
Met OfficeUKMO model
26°
Cloudy
Today 26°·Low 16°·Rain -
EuropeanECMWF
26°
Cloudy
Today 26°·Low 14°·Rain 22%
AmericanNOAA GFS
25°
Cloudy
Today 25°·Low 15°·Rain 13%

The weather map: all three models at once

Met Office, European, American side by side around London and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Cloudy
26° 15°
models agree
Tomorrow
Cloudy
23° 18°
models agree
Tue
Drizzle
20° 15°
models agree
Wed
Partly cloudy
20° 12°
models agree
Thu
Light drizzle
19° 13°
±2°
Fri
Light drizzle
22° 16°
models agree
Sat
Cloudy
23° 12°
±4°
Sun
Light drizzle
23° 16°
±4°
Mon
Cloudy
23° 15°
±3°
Tue
Light drizzle
23° 17°
±3°
Wed
Light drizzle
21° 14°
±8°
Thu
Partly cloudy
22° 13°
±9°
Fri
Light rain
19° 14°
±4°
Sat
Light drizzle
19° 13°
±4°

London, England. Below we compare what Met Office, European, American forecast for London right now and flag exactly where they disagree, then break down London's weather month by month and which forecast model has been most accurate here.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

London weather by month

what to expect in London through the year

Here is London's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to London by season.

Jan
Cool
Feb
11°
Cool
Mar
11°
Cool
Apr
13°
Cool
May
18°
Mild
Jun
22°
11°
Warm
Jul
22°
13°
Warm
Aug
22°
14°
Warm
Sep
21°
13°
Mild
Wettest
Oct
16°
Mild
Nov
11°
Cool
Dec
10°
Cool

What London's weather is like through the year

London runs from warm summers, with June highs near 22°C, to cold winters, when January lows sit around 2°C (a swing of about 20°C across the year). September is usually the wettest month, and London sees roughly 836 mm of precipitation annually.

Best time to visit London

The most comfortable time to visit London is usually May, June, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest September rain is behind you.

Which forecast is most accurate in London?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
96
/100rank #1
96±0.2°C97±0.9 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
82
/100rank #2
89±0.6°C96±1.1 mph6581% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
79
/100rank #3
87±0.7°C95±1.6 mph5877% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1880 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

Bottom line: over the last 30 days the European model has been the most accurate forecast for London, scoring 96/100 on our CheckWeather Score, ahead of the Met Office at 82. See the full UK accuracy scoreboard for exactly how every model is tested.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°25° to 26°±9%13% to 22% chance
Tomorrow±1°23° to 24°±3%9% to 12% chance
Tue±2°20° to 22°±10%53% to 63% chance
Wed±1°20° to 21°±1%2% to 3% chance
Thu±2°18° to 21°±6%14% to 20% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in London

today, local time
Sunrise
06:21
Sunset
19:36
Daylight
13h 15m

Common questions

What's the weather in London today?
On this page we show what Met Office, European, American each forecast for London today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in London today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for London and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for London?
Over the last 30 days, the European model has been the most accurate for London (CheckWeather Score 96/100), ahead of the Met Office at 82. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in London?
June is typically the warmest month in London, with average highs around 22°C.
How cold does London get?
The coldest month in London is January, when overnight lows average about 2°C.
How much rain does London get?
London sees roughly 836 mm of precipitation a year, with September usually the wettest month.
When is the best time to visit London?
The most comfortable time to visit London is usually May, June, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest September rain is behind you.
Does it snow in London?
Rarely - London very seldom sees overnight lows drop below freezing, so lasting snow is unusual.

Nearby

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