Stornoway, Lewis weather in August 2025

Expect 61°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Stornoway, Lewis in August. Check more long-term weather averages for Stornoway, Lewis in August before you book your next holiday to Scotland in 2025/2026.

  • 61°F maximum daytime temperature in August in Stornoway, Lewis61
    61°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Stornoway, Lewis20
    20 days with some rainfall
  • 50°F minimum night-time temperature in August in Stornoway, Lewis50
    50°F min night temperature
  • 15 hours of daylight per day in August in Stornoway, Lewis15
    15 hours of daylight per day
  • No heat & humidity in August in Stornoway, Lewis0
    No heat & humidity
  • 3.8 inches monthly rainfall in August in Stornoway, Lewis3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Stornoway, Lewis4
    4 (Moderate) UV index
  • 55°F sea temperature in August in Stornoway, Lewis55
    55°F sea temperature

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The August 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)  |  Imperial (°F)

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More about Scotland

How warm is it in Stornoway, Lewis in August?

Daytime temperatures usually reach 61°F in Stornoway, Lewis in August, falling to 50°F at night.

How sunny is it in Stornoway, Lewis in August?

There are normally 4 hours of bright sunshine each day in Stornoway, Lewis in August - that's 28% of daylight hours.

How warm is the sea around Stornoway, Lewis in August?

The average sea temperature around Stornoway, Lewis in August is 55°F.

Does it rain in Stornoway, Lewis in August?

There are usually 20 days with some rain in Stornoway, Lewis in August and the average monthly rainfall is 3.8 inches.

Stornoway, Lewis August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:18 20:44
Saturday, 16th August 2025 04:50 20:08
Sunday, 31st August 2025 05:23 19:27

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