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London Weather by Month
Average temperatures, rainfall and humidity for London, United Kingdom, month by month, built from OpenWeather’s historical records. Use it to see what a typical London month looks like before you travel — then check the live London forecast for the days ahead.
Warmest month
July
24°C average high
Coolest month
January
3°C average low
Wettest month
February
110 mm of rain
Driest month
April
60 mm of rain
Average temperature and rainfall in London by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 8°C | 3°C | -8°C / 15°C | 88 mm | 84% | 15 km/h |
| February | 9°C | 4°C | -8°C / 18°C | 110 mm | 80% | 16 km/h |
| March | 11°C | 4°C | -5°C / 23°C | 81 mm | 76% | 15 km/h |
| April | 14°C | 6°C | -3°C / 27°C | 60 mm | 70% | 14 km/h |
| May | 18°C | 9°C | 1°C / 34°C | 70 mm | 70% | 14 km/h |
| June | 22°C | 13°C | 6°C / 36°C | 63 mm | 69% | 13 km/h |
| July | 24°C | 15°C | 7°C / 39°C | 79 mm | 67% | 13 km/h |
| August | 23°C | 14°C | 6°C / 37°C | 71 mm | 70% | 13 km/h |
| September | 20°C | 12°C | 3°C / 32°C | 66 mm | 76% | 13 km/h |
| October | 16°C | 9°C | -1°C / 25°C | 90 mm | 82% | 13 km/h |
| November | 11°C | 6°C | -5°C / 18°C | 89 mm | 84% | 14 km/h |
| December | 9°C | 5°C | -5°C / 16°C | 83 mm | 85% | 15 km/h |
Best time to visit London
The most comfortable time to visit London is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around February, totalling about 952 mm a year.
Travellers who prefer heat should aim for July, when highs average 24°C. February is the month to avoid if rain would spoil your plans — it averages 110 mm, roughly 2× the rainfall of the driest month (April).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the London forecast for what is happening now.