Fairbanks weather in September 2025

Expect daytime maximum temperatures of 13°C in Fairbanks, Alaska in September based on long-term weather averages. There are 5 hours of sunshine per day on average.

  • 13°C maximum daytime temperature in September in Fairbanks13
    13°C max day temperature
  • 5 hours of sunshine per day
  • 9 days with some rainfall in September in Fairbanks9
    9 days with some rainfall
  • 1°C minimum night-time temperature in September in Fairbanks1
    1°C min night temperature
  • 13 hours of daylight per day in September in Fairbanks13
    13 hours of daylight per day
  • No heat & humidity in September in Fairbanks0
    No heat & humidity
  • 30 mm monthly rainfall in September in Fairbanks30
    30 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in September in Fairbanks2
    2 (Low) UV index

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The September weather guide for Alaska (Fairbanks) 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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How warm is it in Fairbanks in September?

Daytime temperatures usually reach 13°C in Fairbanks in September, falling to 1°C at night.

How sunny is it in Fairbanks in September?

There are normally 5 hours of bright sunshine each day in Fairbanks in September - that's 39% of daylight hours.

Does it rain in Fairbanks in September?

There are usually 9 days with some rain in Fairbanks in September and the average monthly rainfall is 30mm.

Fairbanks September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:32 20:07
Monday, 15th September 2025 06:14 19:15
Tuesday, 30th September 2025 06:59 18:21

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