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The Dalles weather in September 2025
Expect 24°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in The Dalles in September. Check more long-term weather averages for The Dalles in September before you book your next holiday to Oregon in 2025/2026.
- 2424°C max day temperature
- 9 hours of sunshine per day
- 55 days with some rainfall
- 66°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 1919 mm of monthly rainfall
- 55 (Moderate) UV index
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The September weather guide for Oregon (The Dalles) 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)
More about the USA
How hot is it in The Dalles in September?
Daytime temperatures usually reach 24°C in The Dalles in September, falling to 6°C at night.
How sunny is it in The Dalles in September?
There are normally 9 hours of bright sunshine each day in The Dalles in September - that's 68% of daylight hours.
Does it rain in The Dalles in September?
There are usually 5 days with some rain in The Dalles in September and the average monthly rainfall is 19mm.
The Dalles September sunrise & sunset times
Browse the sunrise and sunset times for The Dalles in September 2025. Select a month to view The Dalles sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:26 | 18:42 |
Monday, 15th September 2025 | 05:44 | 18:15 |
Tuesday, 30th September 2025 | 06:02 | 17:46 |
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