Monthly climate guide
London weather in December
With highs near 8°C (47°F) and lows around 3°C (38°F), December feels cool in London. Rainfall averages about 83 mm (some rain) and the sky is often cloudy. Daytime highs are 2°C cooler than November and about the same as January.
What stands out in December
- Just 150 km apart, but London runs about 2°C cooler than Bournemouth this month.
- Expect more cloud than at any other time of year.
- Only 2 months are cooler in London than December.
- There's little difference between day and night (around 5°C).
It's usually the wettest month of the year.
Avg high
8°C
47°F
Avg low
3°C
38°F
Rainfall
83 mm
some rain
Humidity
94%
relative
Sky
75%
cloud · often cloudy
London weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 7°C / 45°F | 2°C / 35°F | 67 mm | 93% | 73% |
| February | 8°C / 46°F | 2°C / 35°F | 51 mm | 90% | 73% |
| March | 11°C / 51°F | 3°C / 37°F | 48 mm | 85% | 71% |
| April | 14°C / 57°F | 4°C / 40°F | 42 mm | 81% | 66% |
| May | 17°C / 63°F | 7°C / 45°F | 50 mm | 78% | 69% |
| June | 20°C / 68°F | 10°C / 51°F | 66 mm | 78% | 72% |
| July | 23°C / 73°F | 12°C / 54°F | 57 mm | 75% | 67% |
| August | 22°C / 72°F | 12°C / 54°F | 66 mm | 77% | 72% |
| September | 20°C / 68°F | 10°C / 50°F | 46 mm | 80% | 65% |
| October | 15°C / 60°F | 8°C / 46°F | 75 mm | 87% | 72% |
| November | 11°C / 51°F | 5°C / 40°F | 71 mm | 92% | 74% |
| December | 8°C / 47°F | 3°C / 38°F | 83 mm | 94% | 75% |
What to pack for December
- A proper insulated winter coat
- A hat, scarf and gloves
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit London?
Our London guide recommends: May to September for the warmest, driest weather and the longest daylight hours.
Many of London's biggest museums — including the British Museum — are free to enter, though special exhibitions carry a charge.
Best time to visit London →Other United Kingdom cities in December
Cite or embed this data
Writing about this destination? Copy a ready-made citation or embed a live widget — free, just keep the link.
London weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/uk/london/december
<a href="https://weathercompare.eu/weather/uk/london/december">London weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/uk/london" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="London weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/uk/london/december">London weather in December</a> – WeatherCompare</p>
London in December: quick answers
Is December a good time to visit London?
December is cool in London, with highs around 8°C. Better for museums and city walks than the beach, and usually quieter.
How warm is London in December?
Average highs are about 8°C (47°F) and average lows about 3°C (38°F), based on 10 years of daily data.
Does it rain a lot in London in December?
London typically gets around 83 mm of rain in December — some rain. It's usually the wettest month of the year.
When is the best time to visit London?
May to September for the warmest, driest weather and the longest daylight hours.
Figures are long-term averages for the area around London (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.