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Friday Harbor weather in May 2025
Expect 16°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Friday Harbor in May. Check more long-term weather averages for Friday Harbor in May before you book your next holiday to Washington State in 2025/2026.
- 1616°C max day temperature
- 8 hours of sunshine per day
- 1111 days with some rainfall
- 77°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 3333 mm of monthly rainfall
- 66 (High) UV index
- 1010°C sea temperature
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Friday Harbor by month
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Recommended for Washington State
The May weather guide for Washington State (Friday Harbor) 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 warm is it in Friday Harbor in May?
Daytime temperatures usually reach 16°C in Friday Harbor in May, falling to 7°C at night.
How sunny is it in Friday Harbor in May?
There are normally 8 hours of bright sunshine each day in Friday Harbor in May - that's 52% of daylight hours.
Is the sea cold around Friday Harbor in May?
The average sea temperature around Friday Harbor in May is 10°C.
Does it rain in Friday Harbor in May?
There are usually 11 days with some rain in Friday Harbor in May and the average monthly rainfall is 33mm.
Friday Harbor May sunrise & sunset times
Browse the sunrise and sunset times for Friday Harbor in May 2025. Select a month to view Friday Harbor sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 04:52 | 19:27 |
Friday, 16th May 2025 | 04:30 | 19:48 |
Saturday, 31st May 2025 | 04:15 | 20:05 |
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