Coeur d'Alene weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Coeur d'Alene in September. Check more long-term weather averages for Coeur d'Alene in September before you book your next holiday to Idaho in 2025/2026.

  • 23°C maximum daytime temperature in September in Coeur d'Alene23
    23°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Coeur d'Alene7
    7 days with some rainfall
  • 6°C minimum night-time temperature in September in Coeur d'Alene6
    6°C min night temperature
  • 13 hours of daylight per day in September in Coeur d'Alene13
    13 hours of daylight per day
  • No heat & humidity in September in Coeur d'Alene0
    No heat & humidity
  • 32 mm monthly rainfall in September in Coeur d'Alene32
    32 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Coeur d'Alene5
    5 (Moderate) UV index

More about Coeur d'Alene

Coeur d'Alene by month

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Recommended for Idaho

  • Kids stay & eat for free at Marriot Bonvoy
  • Destinations include Europe, Middle East & Africa
  • Valid for up to 2 adults & 2 kids aged up to 12

The September weather guide for Idaho (Coeur d'Alene) 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 the USA

How hot is it in Coeur d'Alene in September?

Daytime temperatures usually reach 23°C in Coeur d'Alene in September, falling to 6°C at night.

How sunny is it in Coeur d'Alene in September?

There are normally 9 hours of bright sunshine each day in Coeur d'Alene in September - that's 68% of daylight hours.

Does it rain in Coeur d'Alene in September?

There are usually 7 days with some rain in Coeur d'Alene in September and the average monthly rainfall is 32mm.

Coeur d'Alene September sunrise & sunset times

Browse the sunrise and sunset times for Coeur d'Alene in September 2025. Select a month to view Coeur d'Alene sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:06 18:27
Monday, 15th September 2025 05:25 17:58
Tuesday, 30th September 2025 05:45 17:28

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