20-Year Climate Average
London, England, United Kingdom Weather in December
Normal High
47°F
Normal Low
38°F
Rainy Days
~16 of the month
Chance of Rain
50%
Humidity
87%
UV index
Not available
Daylight
7.9 hours
Peak wind
14 mph
Usually good for: running and hiking.
Based on December climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
65°F
It currently feels like 64°F with 76% humidity, a 57°F dew point and 6 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
73° / 57° · 0% rain
72° / 59° · 6% rain
66° / 51° · 78% rain
Best Months to Visit London, England, United Kingdom
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in London, England, United Kingdom in December?
The 20-year average high in London, England, United Kingdom in December is 47°F, with a low around 38°F and about 16 rainy days.