Scilly Isles weather in May 2025

Expect 14°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Scilly Isles in May. Check more long-term weather averages for Scilly Isles in May before you book your next holiday to England in 2025/2026.

  • 14°C maximum daytime temperature in May in Scilly Isles14
    14°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in May in Scilly Isles14
    14 days with some rainfall
  • 8°C minimum night-time temperature in May in Scilly Isles8
    8°C min night temperature
  • 15 hours of daylight per day in May in Scilly Isles15
    15 hours of daylight per day
  • No heat & humidity in May in Scilly Isles0
    No heat & humidity
  • 69 mm monthly rainfall in May in Scilly Isles69
    69 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Scilly Isles6
    6 (High) UV index
  • 12°C sea temperature in May in Scilly Isles12
    12°C sea temperature

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The May weather guide for England (Scilly Isles) 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 Scilly Isles in May?

Daytime temperatures usually reach 14°C in Scilly Isles in May, falling to 8°C at night.

How sunny is it in Scilly Isles in May?

There are normally 7 hours of bright sunshine each day in Scilly Isles in May - that's 45% of daylight hours.

How warm is the sea around Scilly Isles in May?

The average sea temperature around Scilly Isles in May is 12°C.

Does it rain in Scilly Isles in May?

There are usually 14 days with some rain in Scilly Isles in May and the average monthly rainfall is 69mm.

Scilly Isles May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:01 19:44
Friday, 16th May 2025 04:38 20:06
Saturday, 31st May 2025 04:22 20:24

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