London Weather in March
In March, London averages a high of 11°C (51°F) and a low of 3°C (38°F), from 49 years of daily records (1971–2025).
11°C
Average high
51°F
3°C
Average low
38°F
22°C
Record high
71°F · March 27, 2012
-6°C
Record low
21°F · March 5, 1971
What March Is Like in London
- March 2024 was the 2nd warmest March in 49 years of records, 2.2°C (4.0°F) above the long-run average.
- March in London has become 1.7°C (3.0°F) warmer on average: the 2011–2025 average against 1970–1989.
- The coldest March reading, -6°C (21°F) on March 5, 1971, has not been matched in 54 years.
- On average, 4.3 nights in March drop below freezing.
At least 1 mm of rain falls on 33% of March days, and the month averages 49 mm in total.
Warmest: 2022 (14.3°C)Latest: 2024 (13.1°C)10-year averageLong-run average (10.6°C)
Look Up a Day in March
See the weather in London on any March date, year by year.
Source: NOAA GHCN-Daily, Hampstead (1971–2016); Heathrow (1986–2025). Averages cover 1971–2025. How we compute this