London weather in December
December in London: cold, a little rain, with clean air — a fair time to visit.
#12 of 12 months in London · #457 of 604 destinations to visit in December · comfort 54/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
London climate normals — December
| Daytime high | 9°C / 47°F | 🧥 cold |
|---|---|---|
| Nighttime low | 4°C / 39°F | |
| Feels like (high) | 5°C / 41°F | |
| Rainfall | 78 mm / 3.1 in | 🌦 some rain |
| Rainy days | 15 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 4°C / 40°F | |
| Sunshine | 2.9 h/day | |
| Daylight | 7.9 h | |
| Wind | 23 km/h / 14 mph | |
| Snowfall | 1 cm / 0.4 in | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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London in December — FAQ
- Is December a good time to visit London?
- December in London: cold, a little rain, with clean air — a fair time to visit. It ranks #12 of 12 months for London on SeasonMap's comfort score (54/100).
- What is the weather like in London in December?
- In December, London averages a daily high of 8.5°C and a low of 3.7°C, with about 77.8 mm of rain over roughly 14.6 rainy days.
- What is the air quality in London in December?
- London has a mean US Air Quality Index of about 37 in December.
- Does it snow in London in December?
- London sees roughly 1 cm of snowfall in December.