London Weather in January
In January, London averages a high of 7°C (45°F) and a low of 2°C (35°F), from 48 years of daily records (1971–2025).
7°C
Average high
45°F
2°C
Average low
35°F
16°C
Record high
60°F · January 26, 2003
-12°C
Record low
11°F · January 13, 1987
What January Is Like in London
- The coldest January reading, -12°C (11°F) on January 13, 1987, has not been matched in 38 years.
- January is London's coldest month of the year.
- January in London has become 1.2°C (2.1°F) warmer on average: the 2011–2025 average against 1970–1989.
- On average, 9.2 nights in January drop below freezing.
At least 1 mm of rain falls on 39% of January days, and the month averages 66 mm in total.
Warmest: 1993 (9.9°C)Latest: 2024 (8.7°C)10-year averageLong-run average (7.2°C)
Look Up a Day in January
See the weather in London on any January date, year by year.
Source: NOAA GHCN-Daily, Hampstead (1971–2016); Heathrow (1986–2025). Averages cover 1971–2025. How we compute this