September · Alaska
Best time to visit Fairbanks in September Weather, crowds & prices
Weather in Fairbanks in September
Average temperature 5°C, 60 mm of rain, about 0 days with 6+ hours of sunshine and 90% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
4.9/10
Ranked #6 of 12 months
- Avg temp
- 5°C
- Rainfall
- 60 mm
- Humidity
- 90%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
September in Fairbanks scores 4.9/10 for nature and wildlife travel - an above-average month (#6 of 12). Expect around 5°C, 60 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Fairbanks is Alaska's interior gateway for aurora viewing, midnight sun summers, and Chena River hot springs.
September in Fairbanks — the hardest end of the year
Expect 5°C (42°F) in September. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 60 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 12.6 hours of daylight to work around it.
That is 4.9/10 on the same scale — 6th of 12 months, versus 8.8/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
Expect mid-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Fairbanks — 3.9 points higher on the same scale.
Frequently asked
- What is the weather like in Fairbanks in September?
- In September, Fairbanks averages 5°C, 60 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 4.9/10.
- Is September a good time to visit Fairbanks?
- September earns a 4.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Fairbanks in September?
- Expect about 60 mm of rain in September. Average humidity is 90% and there are about 0 days with 6+ hours of sunshine.
Curated in Fairbanks
Tickets & experiences
Things to do in Fairbanks
Fairbanks, Alaska. Live activities and tours from GetYourGuide, matched to this destination.