climate archive

London weather in 2020

In 2020, the average daily high in London was 15.5°C, 1.3° warmer than the 1991-2020 climate normal (14.2°C). 765 mm of rain fell that year, making it wetter than average (649 mm), with 2884 hours of sunshine.

Measured in London. Source: Open-Meteo historical data (ERA5 reanalysis).

Records of 2020

Warmest day: 31 Jul 2020, 33.9°C
Coldest night: 31 Dec 2020, -3.4°C
Wettest day: 3 Oct 2020, 31.8 mm

Day counts for 2020

Frost days (low below 0°C): 18
Ice days (high below 0°C): 0
Warm days (high 25°C or above): 19
Hot days (high 30°C or above): 8

Compared with the climate normal (1991-2020)

The climate normal for London over the 1991-2020 reference period is an average daily high of 14.2°C, 649 mm of rain and 2737 hours of sunshine per year. 2020 differed by 1.3° in temperature and 116 mm in rainfall.

Frequently asked questions

Was 2020 warmer or cooler than average in London?
2020 was 1.3° warmer than the 1991-2020 climate normal, with an average daily high of 15.5°C compared to a normal of 14.2°C.

How much rain fell in London in 2020?
London recorded 765 mm of rain in total in 2020, compared to a climate normal of 649 mm.

What was the warmest day of 2020 in London?
The warmest day of 2020 was 31 Jul 2020, reaching 33.9°C in London.

Other years