United Kingdom
London in December: weather & travel advice
This month's data profile
Rain shapes the decision
London in December is climatically mixed. The average daily high is around 7 °C. With about 13 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
27/100 · #11
Warmth
#11
Dryness
#10
Sun
#12
Published best categories: none
London · DecemberPhoto: Colin · CC BY-SA 4.0Climate facts
- Average high
- 7 °C
- Average low
- 3 °C
- Rainy days (est.)
- 13 rainy days (est.)
- Sun (est.)
- 1 h/day
- Humidity
- 94 %
For your trip planning
December: separate the occasion from the climate
Christmas lights and theatre can make December appealing without a high climate score. Plan warm clothing and indoor breaks for evening outings. Check event dates and opening times separately; they are not part of our climate data.
Background: Visit London · Best time to visit
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| November | 10 | 4 | 14 | 75 | 1.2 | 92 | 3.5 | 31 |
| December (selected) | 7 | 3 | 13 | 72 | 0.8 | 94 | 3.7 | 27 |
| January | 7 | 1 | 13 | 65 | 1.0 | 93 | 3.9 | 26 |
How do the previous and next months compare?
Baseline: December (27/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| November | +4 | +3 °C | +1.9 °C | +0.5 | +3 mm | +0.4 h | -1.8 % | -0.3 m/s |
| January | -1 | -0.5 °C | -1.1 °C | +0.2 | -7.6 mm | +0.2 h | -0.9 % | +0.1 m/s |
All twelve months in context
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Where to stay in London
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Useful next decisions
Frequently asked questions
How warm is London in December?
The average daily high is around 7 °C, with an average daily low of about 3 °C.
Does it rain a lot in London in December?
The curated estimate is about 13 rainy days per month, not a directly measured long-term average. Total precipitation averages around 72 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit London?
By the climate score, June, July, August and September are the strongest months for London. December is not among them.