Isle of Arran weather in May 2025

Expect 12°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Isle of Arran in May. Check more long-term weather averages for Isle of Arran in May before you book your next holiday to Scotland in 2025/2026.

  • 12°C maximum daytime temperature in May in Isle of Arran12
    12°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in May in Isle of Arran17
    17 days with some rainfall
  • 5°C minimum night-time temperature in May in Isle of Arran5
    5°C min night temperature
  • 16 hours of daylight per day in May in Isle of Arran16
    16 hours of daylight per day
  • No heat & humidity in May in Isle of Arran0
    No heat & humidity
  • 89 mm monthly rainfall in May in Isle of Arran89
    89 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Isle of Arran5
    5 (Moderate) UV index
  • 10°C sea temperature in May in Isle of Arran10
    10°C sea temperature

More about Isle of Arran

Isle of Arran by month

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The May weather guide for Scotland (Isle of Arran) 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 Scotland

How warm is it in Isle of Arran in May?

Daytime temperatures usually reach 12°C in Isle of Arran in May, falling to 5°C at night.

How sunny is it in Isle of Arran in May?

There are normally 6 hours of bright sunshine each day in Isle of Arran in May - that's 37% of daylight hours.

Is the sea cold around Isle of Arran in May?

The average sea temperature around Isle of Arran in May is 10°C.

Does it rain in Isle of Arran in May?

There are usually 17 days with some rain in Isle of Arran in May and the average monthly rainfall is 89mm.

Isle of Arran May sunrise & sunset times

Browse the sunrise and sunset times for Isle of Arran in May 2025. Select a month to view Isle of Arran sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:38 19:59
Friday, 16th May 2025 04:08 20:28
Saturday, 31st May 2025 03:47 20:52

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