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Best time to visit · United Kingdom
On the climate data, the best time to visit London is May – September, scoring up to 87/100 with highs around 68°F (20°C) and 1.7 in (44 mm) of rain in September. April and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
Highs run from 45°F to 73°F across the year, and the yearly total is about 28.0 in (710 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 45°F7°C | 46°F8°C | 51°F11°C | 58°F14°C | 64°F18°C | 69°F21°C | 73°F23°C | 73°F23°C | 68°F20°C | 60°F16°C | 51°F11°C | 46°F8°C |
| Avg low | 35°F2°C | 35°F2°C | 37°F3°C | 40°F5°C | 46°F8°C | 52°F11°C | 55°F13°C | 55°F13°C | 50°F10°C | 46°F8°C | 40°F5°C | 37°F3°C |
| Rain | 2.6 in65 mm | 2.1 in54 mm | 2.0 in50 mm | 1.7 in42 mm | 2.2 in55 mm | 2.2 in56 mm | 2.4 in60 mm | 2.6 in66 mm | 1.7 in44 mm | 2.9 in73 mm | 2.9 in74 mm | 2.8 in71 mm |
| Humidity | 93% | 90% | 86% | 81% | 79% | 78% | 76% | 78% | 81% | 87% | 92% | 94% |
| Cloud | 75% | 75% | 73% | 68% | 71% | 72% | 69% | 72% | 68% | 73% | 75% | 76% |
| Comfort | 50 | 53 | 62 | 76 | 83 | 84 | 85 | 83 | 87 | 74 | 59 | 50 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 73 m (240 ft), close to London's own ~15 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 45–46°F (7–8°C), and nights reach 35°F (2°C). About 7.5 in (190 mm) of rain falls across these months, 27% of the year's total. Comfort scores bottom out in December – February; the season averages 51/100.
Temperatures climb through the season, from 51°F highs in March to 64°F by May. It's the driest season, with only about 5.8 in (147 mm) of rain, 21% of the year's total. Lows bottom out around 37°F (3°C). May is among the best-scoring months (season average 74/100).
The warmest stretch of the year, with highs of 69–73°F (21–23°C). About 7.2 in (182 mm) of rain falls across these months, 26% of the year's total. Lows bottom out around 52°F (11°C). Comfort peaks here: June – August rank with the year's best, and the season averages 84/100.
Temperatures slide from 68°F highs in September to 51°F by November. It's the wettest season, with about 7.5 in (191 mm) of rain, 27% of the year's total. Lows bottom out around 40°F (5°C). September is among the best-scoring months (season average 73/100).
By comfort score: 6 Great, 2 Good and 4 Fair. Great months: April – September. Tap a month for its own guide.
On the climate data, the best time to visit London is May – September, scoring up to 87/100 with highs around 68°F (20°C) and 1.7 in (44 mm) of rain in September. April and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
November is the wettest month, averaging about 2.9 in (74 mm) of rain. April is the driest, with about 1.7 in (42 mm). The yearly total is around 28.0 in (710 mm).
February is the coldest, with average lows of 35°F (2°C) and highs of 46°F (8°C). The warmest is July, with average highs of 73°F (23°C).
Not very: summer (June – August) humidity averages 77%, and highs peak around 73°F (23°C), so it rarely feels sticky.
Not on average: even in February, the coldest month, lows average 35°F (2°C). Individual cold snaps can still dip lower.
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