Measurements:
°C
°F
London
82°F
E 3 mph
Feels like: 82°F
Precip: 0%
World Resorts United Kingdom London Weather May Weather in London

London Weather: May

Average Day Temperature: 64.8°F
Average Night Temperature: 50.2°F
Sea Water Temperature: 55.4°F
Number of Sunny Days: 8 days
Sunshine Hours: 13.9 - 16.3 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.8 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 94°F. The lowest night temperature was 40°F. The average values for day and night temperatures during May were 67.5°F и 51.8°F respectivly.

London Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for London was 58.0°F. The maximum and minimum values were 54.8°F and 64.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are gloomy but you can also expect sunny days.

Precipitation Totals in May, in

Precipitation total in May for London is 1.8 in.

Wind Speed in May, mph

The average wind speed in May is 9.0 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for London in May is 7.5 hours.

Best Time to Visit London
The most sunny months:
September 9 days
July 8 days
April 8 days
The most warm months:
July 75.9 °F
August 75.4 °F
June 71.7 °F
Warmest sea temperature:
August 68.2 °F
July 66.6 °F
September 64.9 °F
The most cold months:
January 43.9 °F
February 46.8 °F
December 47.1 °F
The most rainy months:
December 5 days
August 4 days
October 4 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph

London on the Weather Map

United Kingdom Resorts:
NAME
Bath +68
Belfast +56
Bournemouth +70
Brighton +68
Bristol +68
Edinburgh +64
Gibraltar +72
Glasgow +64
Liverpool +68
London +82
Middlesbrough +68
Plymouth +66
Scarborough +64
Torquay +68
York +70
24 Hours Weather Forecast
London
Local time: 11:07
30 may, saturday
1200 82°F
E
3 mph
1500 86°F
E
6 mph
1800 82°F
SE
6 mph
2100 74°F
SE
6 mph
31 may, sunday
0000 68°F
SE
7 mph
0300 62°F
E
6 mph
0600 60°F
E
7 mph
0900 66°F
E
10 mph