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Seattle weather in May 2025
Expect 64°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Seattle in May. Check more long-term weather averages for Seattle in May before you book your next holiday to Washington State in 2025/2026.
- 6464°F max day temperature
- 8 hours of sunshine per day
- 1111 days with some rainfall
- 4646°F min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 1.81.8 inches of monthly rainfall
- 66 (High) UV index
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Recommended for Washington State
The May weather guide for Washington State (Seattle) 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) | Imperial (°F)
More about the USA
How hot is it in Seattle in May?
Daytime temperatures usually reach 64°F in Seattle in May, falling to 46°F at night.
How sunny is it in Seattle in May?
There are normally 8 hours of bright sunshine each day in Seattle in May - that's 52% of daylight hours.
Does it rain in Seattle in May?
There are usually 11 days with some rain in Seattle in May and the average monthly rainfall is 1.8 inches.
Seattle May sunrise & sunset times
Browse the sunrise and sunset times for Seattle in May 2025. Select a month to view Seattle sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 04:51 | 19:22 |
Friday, 16th May 2025 | 04:30 | 19:42 |
Saturday, 31st May 2025 | 04:16 | 19:59 |
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