Greater London weather in May 2025

Q: How warm is it in Greater London in May?

Daytime temperatures usually reach 17°C in London, Greater London in May, falling to 8°C at night.

Q: How sunny is it in Greater London in May?

There are normally 6 hours of bright sunshine each day in London, Greater London in May - that's 39% of daylight hours.

Q: Does it rain in Greater London in May?

There are usually 13 days with some rain in London, Greater London in May and the average monthly rainfall is 51mm.

Expect 17°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Greater London in May. Check more long-term weather averages for Greater London in May before you book your next holiday to Greater London in 2025/2026.

17
17°C max day temperature
6
6 hours of sunshine per day
13
13 days with some rainfall
8
8°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
51
51 mm of monthly rainfall
5
5 (Moderate) UV index

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The May weather guide for Greater London (London) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

How warm is it in Greater London in May?

Daytime temperatures usually reach 17°C in London, Greater London in May, falling to 8°C at night.

How sunny is it in Greater London in May?

There are normally 6 hours of bright sunshine each day in London, Greater London in May - that's 39% of daylight hours.

Does it rain in Greater London in May?

There are usually 13 days with some rain in London, Greater London in May and the average monthly rainfall is 51mm.

Greater London May sunrise & sunset times

Browse the sunrise and sunset times for Greater London in May 2025. Select a month to view Greater London sunrise and sunset times for the next 12 months.

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