Fort William weather in September 2025

Expect 14°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Fort William in September. Check more long-term weather averages for Fort William in September before you book your next holiday to Scotland in 2025/2026.

  • 14°C maximum daytime temperature in September in Fort William14
    14°C max day temperature
  • 3 hours of sunshine per day
  • 23 days with some rainfall in September in Fort William23
    23 days with some rainfall
  • 7°C minimum night-time temperature in September in Fort William7
    7°C min night temperature
  • 13 hours of daylight per day in September in Fort William13
    13 hours of daylight per day
  • No heat & humidity in September in Fort William0
    No heat & humidity
  • 272 mm monthly rainfall in September in Fort William272
    272 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Fort William3
    3 (Moderate) UV index

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The September weather guide for Scotland (Fort William) 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 Fort William in September?

Daytime temperatures usually reach 14°C in Fort William in September, falling to 7°C at night.

How sunny is it in Fort William in September?

There are normally 3 hours of bright sunshine each day in Fort William in September - that's 20% of daylight hours.

Does it rain in Fort William in September?

There are usually 23 days with some rain in Fort William in September and the average monthly rainfall is 272mm.

Fort William September sunrise & sunset times

Browse the sunrise and sunset times for Fort William in September 2025. Select a month to view Fort William sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:23 19:16
Monday, 15th September 2025 05:52 18:38
Tuesday, 30th September 2025 06:22 17:57

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