Isle of Man weather in May 2025

Expect 55°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Isle of Man in May. Check more long-term weather averages for Isle of Man in May before you book your next holiday to Isle of Man in 2025/2026.

  • 55°F maximum daytime temperature in May in Isle of Man (Douglas)55
    55°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Isle of Man (Douglas)15
    15 days with some rainfall
  • 43°F minimum night-time temperature in May in Isle of Man (Douglas)43
    43°F min night temperature
  • 16 hours of daylight per day in May in Isle of Man (Douglas)16
    16 hours of daylight per day
  • No heat & humidity in May in Isle of Man (Douglas)0
    No heat & humidity
  • 3.3 inches monthly rainfall in May in Isle of Man (Douglas)3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Isle of Man (Douglas)5
    5 (Moderate) UV index
  • 50°F sea temperature in May in Isle of Man (Douglas)50
    50°F sea temperature

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The May weather guide for Isle of Man, represented by Douglas, (Douglas) 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)  |  Imperial (°F)

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How warm is it in the Isle of Man in May?

Daytime temperatures usually reach 55°F in Douglas, Isle of Man in May, falling to 43°F at night.

How sunny is it in the Isle of Man in May?

There are normally 7 hours of bright sunshine each day in Douglas, Isle of Man in May - that's 42% of daylight hours.

How warm is the sea around the Isle of Man in May?

The average sea temperature around Douglas, Isle of Man in May is 50°F.

Does it rain in the Isle of Man in May?

There are usually 15 days with some rain in Douglas, Isle of Man in May and the average monthly rainfall is 3.3 inches.

Isle of Man May sunrise & sunset times

Browse the sunrise and sunset times for Isle of Man in May 2025. Select a month to view Isle of Man sunrise and sunset times for the next 12 months. The Isle of Man sunrise and sunset times shown below are for Douglas.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:41 19:51
Friday, 16th May 2025 04:12 20:17
Saturday, 31st May 2025 03:53 20:40

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