United Kingdom · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit London are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
London sees its warmest weather in July, when daytime highs average around 24°C, and its coolest in January (around 9°C).
Annual precipitation totals roughly 615mm — October is typically the wettest month (~67mm) and March the driest (~37mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 9° / 4°C | 58mm | 🤔 Fair |
| February | 9° / 4°C | 44mm | 🤔 Fair |
| March | 12° / 5°C | 37mm | 🤔 Fair |
| April | 15° / 7°C | 43mm | 👍 Good |
| May | 18° / 10°C | 45mm | 🌟 Great |
| June | 21° / 13°C | 51mm | 🌟 Great |
| July | 24° / 15°C | 43mm | 🌟 Great |
| August | 23° / 15°C | 55mm | 🌟 Great |
| September | 20° / 12°C | 50mm | 🌟 Great |
| October | 16° / 10°C | 67mm | 👍 Good |
| November | 12° / 6°C | 66mm | 🤔 Fair |
| December | 9° / 4°C | 59mm | 🤔 Fair |
January in London is chilly, with average daytime highs around 9°C (47°F) and nighttime lows near 4°C (38°F). Expect roughly 58mm of precipitation spread over about 11 rainy days, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
February in London is chilly, with average daytime highs around 9°C (48°F) and nighttime lows near 4°C (38°F). Expect roughly 44mm of precipitation spread over about 10 rainy days, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
March in London is chilly, with average daytime highs around 12°C (53°F) and nighttime lows near 5°C (41°F). Expect roughly 37mm of precipitation spread over about 9 rainy days, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
April in London is mild, with average daytime highs around 15°C (59°F) and nighttime lows near 7°C (44°F). Expect roughly 43mm of precipitation spread over about 9 rainy days, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
May in London is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 10°C (49°F). Expect roughly 45mm of precipitation spread over about 8 rainy days, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
June in London is pleasantly warm, with average daytime highs around 21°C (71°F) and nighttime lows near 13°C (55°F). Expect roughly 51mm of precipitation spread over about 9 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
July in London is pleasantly warm, with average daytime highs around 24°C (74°F) and nighttime lows near 15°C (58°F). Expect roughly 43mm of precipitation spread over about 8 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
August in London is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 15°C (58°F). Expect roughly 55mm of precipitation spread over about 9 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
September in London is pleasantly warm, with average daytime highs around 20°C (68°F) and nighttime lows near 12°C (54°F). Expect roughly 50mm of precipitation spread over about 9 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
October in London is mild, with average daytime highs around 16°C (61°F) and nighttime lows near 10°C (49°F). Expect roughly 67mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — light jacket · layers for cool evenings
November in London is chilly, with average daytime highs around 12°C (53°F) and nighttime lows near 6°C (43°F). Expect roughly 66mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
🎒 What to pack — jacket or coat · long-sleeve layers
December in London is chilly, with average daytime highs around 9°C (48°F) and nighttime lows near 4°C (39°F). Expect roughly 59mm of precipitation spread over about 11 rainy days, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers