London in December
3.9out of 10
Not the best time
Cold: highs around 2°C. Frequent rain: about 11 rainy days.
2°CAvg high
-4°CAvg low
11Rainy days (69 mm)
8:50 hDaylight
07:56Sunrise · 16:46 Sunset
Why this score
- Cold: highs around 2°C
- Frequent rain: about 11 rainy days
- Nights fall to about -4°C
What to wear and pack
- Winter coat, hat and scarf
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rain in December varies a lot between years (±3.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -1°C | -8°C | 72 mm | 12 | – | – | 3.5 |
| February | 0°C | -8°C | 58 mm | 10 | – | – | 3.8 |
| March | 6°C | -3°C | 70 mm | 11 | – | – | 4.7 |
| April | 13°C | 3°C | 93 mm | 12 | – | – | 5.9 |
| May | 19°C | 9°C | 98 mm | 12 | – | – | 7.0 |
| June | 24°C | 14°C | 102 mm | 12 | – | – | 7.4 |
| July | 26°C | 16°C | 99 mm | 12 | – | – | 7.4 |
| August | 25°C | 16°C | 85 mm | 11 | – | – | 7.6 |
| September | 22°C | 12°C | 86 mm | 10 | – | – | 7.7 |
| October | 15°C | 6°C | 86 mm | 12 | – | – | 6.3 |
| November | 8°C | 1°C | 77 mm | 11 | – | – | 5.2 |
| December | 2°C | -4°C | 69 mm | 11 | – | – | 3.9 |
Frequently asked questions
How hot is London in December?
Daytime highs average 2°C and nights about -4°C.
When is the best time to visit London?
The best months are September, August, June, July.