Thief River Falls weather in September 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Thief River Falls in September. Check more long-term weather averages for Thief River Falls in September before you book your next holiday to Minnesota in 2025/2026.

  • 20°C maximum daytime temperature in September in Thief River Falls20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Thief River Falls9
    9 days with some rainfall
  • 6°C minimum night-time temperature in September in Thief River Falls6
    6°C min night temperature
  • 13 hours of daylight per day in September in Thief River Falls13
    13 hours of daylight per day
  • No heat & humidity in September in Thief River Falls0
    No heat & humidity
  • 60 mm monthly rainfall in September in Thief River Falls60
    60 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Thief River Falls5
    5 (Moderate) UV index

More about Thief River Falls

Thief River Falls by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Minnesota

Travel Up: Low prices on top car hire brands

  • Search for cheap car hire prices from top car hire providers
  • Filter car hire deals by price, car type, brand & more
  • Brands include Avis, Enterprise, Europcar, Hertz, Sixt & Thifty
Go to Travel Up deal >>

View all Travel Up offers

The September weather guide for Minnesota (Thief River Falls) 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)

Back to top

More about the USA

How hot is it in Thief River Falls in September?

Daytime temperatures usually reach 20°C in Thief River Falls in September, falling to 6°C at night.

How sunny is it in Thief River Falls in September?

There are normally 7 hours of bright sunshine each day in Thief River Falls in September - that's 53% of daylight hours.

Does it rain in Thief River Falls in September?

There are usually 9 days with some rain in Thief River Falls in September and the average monthly rainfall is 60mm.

Thief River Falls September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:43 19:05
Monday, 15th September 2025 06:02 18:36
Tuesday, 30th September 2025 06:23 18:05

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^