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Port Townsend weather in September 2025
Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Port Townsend in September. Check more long-term weather averages for Port Townsend in September before you book your next holiday to Washington State in 2025/2026.
- 2020°C max day temperature
- 7 hours of sunshine per day
- 99 days with some rainfall
- 1010°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 3434 mm of monthly rainfall
- 55 (Moderate) UV index
- 1212°C sea temperature
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Recommended for Washington State
The September weather guide for Washington State (Port Townsend) 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 Port Townsend in September?
Daytime temperatures usually reach 20°C in Port Townsend in September, falling to 10°C at night.
How sunny is it in Port Townsend in September?
There are normally 7 hours of bright sunshine each day in Port Townsend in September - that's 55% of daylight hours.
How warm is the sea around Port Townsend in September?
The average sea temperature around Port Townsend in September is 12°C.
Does it rain in Port Townsend in September?
There are usually 9 days with some rain in Port Townsend in September and the average monthly rainfall is 34mm.
Port Townsend September sunrise & sunset times
Browse the sunrise and sunset times for Port Townsend in September 2025. Select a month to view Port Townsend sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:29 | 18:51 |
Monday, 15th September 2025 | 05:49 | 18:22 |
Tuesday, 30th September 2025 | 06:09 | 17:51 |
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