London weather in May 2026

Expect daytime maximum temperatures of 17°C in London, England in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 51 mm of rainfall in the month.

  • 17°C maximum daytime temperature in May in London17
    17°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in May in London13
    13 days with some rainfall
  • 8°C minimum night-time temperature in May in London8
    8°C min night temperature
  • 16 hours of daylight per day in May in London16
    16 hours of daylight per day
  • No heat & humidity in May in London0
    No heat & humidity
  • 51 mm monthly rainfall in May in London51
    51 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in London5
    5 (Moderate) UV index

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The May weather guide for England (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)

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More about England

How warm is it in London in May?

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

How sunny is it in London in May?

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

Does it rain in London in May?

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

London May sunrise & sunset times

Browse the sunrise and sunset times for London in May 2026. Select a month to view London sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:33 19:24
Saturday, 16th May 2026 04:07 19:47
Sunday, 31st May 2026 03:50 20:07

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