Stornoway, Lewis weather in May 2025

Expect 12°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Stornoway, Lewis in May based on long-term weather averages. There is usually 16 days with some rainfall and 68 mm of average monthly rainfall in May.

  • 12°C maximum daytime temperature in May in Stornoway, Lewis12
    12°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Stornoway, Lewis16
    16 days with some rainfall
  • 6°C minimum night-time temperature in May in Stornoway, Lewis6
    6°C min night temperature
  • 17 hours of daylight per day in May in Stornoway, Lewis17
    17 hours of daylight per day
  • No heat & humidity in May in Stornoway, Lewis0
    No heat & humidity
  • 68 mm monthly rainfall in May in Stornoway, Lewis68
    68 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Stornoway, Lewis4
    4 (Moderate) UV index
  • 9°C sea temperature in May in Stornoway, Lewis9
    9°C sea temperature

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The May weather guide for Scotland (Stornoway, Lewis) 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 Stornoway, Lewis in May?

Daytime temperatures usually reach 12°C in Stornoway, Lewis in May, falling to 6°C at night.

How sunny is it in Stornoway, Lewis in May?

There are normally 6 hours of bright sunshine each day in Stornoway, Lewis in May - that's 35% of daylight hours.

Is the sea cold around Stornoway, Lewis in May?

The average sea temperature around Stornoway, Lewis in May is 9°C.

Does it rain in Stornoway, Lewis in May?

There are usually 16 days with some rain in Stornoway, Lewis in May and the average monthly rainfall is 68mm.

Stornoway, Lewis May sunrise & sunset times

Browse the sunrise and sunset times for Stornoway, Lewis in May 2025. Select a month to view Stornoway, Lewis sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:32 20:15
Friday, 16th May 2025 03:57 20:48
Saturday, 31st May 2025 03:32 21:16

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