Capital city in Greater London, United Kingdom
London weather by month and the best time to visit
When to go to London
May–Sep is mildest with long days; Jul–Aug is busiest and priciest. Dec has markets and lights; Jan–Feb is cold, dark and wet, but cheaper.
London weather by month
Average daily high, rainfall and conditions.
- Jan7°65 mm
- Feb8°54 mm
- Mar10°50 mm
- Apr14°42 mm
- May17°55 mm
- Jun21°56 mm
- Jul23°60 mm
- Aug22°66 mm
- Sep20°44 mm
- Oct15°73 mm
- Nov11°74 mm
- Dec8°71 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 7°C45°F | 2°C35°F | 65 mm | 93% | Cold |
| February | 8°C46°F | 1°C35°F | 54 mm | 90% | Cold |
| March | 10°C51°F | 2°C36°F | 50 mm | 86% | Cold |
| April | 14°C57°F | 5°C40°F | 42 mm | 81% | Cool |
| May | 17°C63°F | 8°C46°F | 55 mm | 79% | Cool |
| June | 21°C69°F | 11°C52°F | 56 mm | 78% | Pleasant |
| July | 23°C73°F | 13°C55°F | 60 mm | 76% | Pleasant |
| August | 22°C72°F | 13°C55°F | 66 mm | 78% | Pleasant |
| September | 20°C68°F | 10°C50°F | 44 mm | 81% | Pleasant |
| October | 15°C60°F | 8°C46°F | 73 mm | 87% | Cool |
| November | 11°C51°F | 5°C40°F | 74 mm | 92% | Cold |
| December | 8°C46°F | 3°C37°F | 71 mm | 94% | Cold |
Best months across United Kingdom
| Place | Best months | Warmest month |
|---|---|---|
| London | May–Jul, Sep | Jul (23°C) |
| Edinburgh | May–Jun, Aug–Sep | Jul (18°C) |
| Manchester | May–Jul, Sep | Jul (20°C) |
| Liverpool | May–Jul, Sep | Jul (19°C) |
| Oxford | May–Jun, Sep | Jul (22°C) |
| Bath | May–Jun, Sep | Jul (21°C) |
| Cambridge | May–Jun, Sep | Jul (23°C) |
| Glasgow | May–Jul, Sep | Jul (18°C) |
| Brighton | May–Jul, Sep | Jul (21°C) |
| Scottish Highlands | May–Jun, Sep | Jul (18°C) |
| Isle of Skye | May–Jun, Sep | Jul (15°C) |
| York | May–Jun, Sep–Oct | Jul (21°C) |
| Bristol | May–Jul, Sep | Jul (22°C) |
| Lake District | May–Jun, Sep–Oct | Jul (18°C) |
| Cornwall | May–Jun, Sep | Jul (18°C) |
| Cotswolds | May–Jun, Sep–Oct | Jul (22°C) |
| Belfast | May–Jul, Sep | Jul (17°C) |
| Cardiff | May–Jul, Sep | Jul (20°C) |
| Birmingham | May–Jul, Sep | Jul (21°C) |
| Newcastle | May–Jul, Sep | Jul (19°C) |
| Leeds | May–Jul, Sep | Jul (21°C) |
| Snowdonia | May–Jul, Sep | Jul (19°C) |
Quick answers
What is the best month to visit London?
May–Jul, Sep. May–Sep is mildest with long days; Jul–Aug is busiest and priciest. Dec has markets and lights; Jan–Feb is cold, dark and wet, but cheaper.
When is the rainy season in London?
Rain peaks in November with about 74 mm. No month averages 150 mm or more.
What is the hottest month in London?
July, with average highs of 23°C (73°F).
How cold does London get?
The coolest nights are in February, averaging 1°C (35°F).
More about London
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.