Bellingham weather in May 2025

Expect 16°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Bellingham in May. Check more long-term weather averages for Bellingham in May before you book your next holiday to Washington State in 2025/2026.

  • 16°C maximum daytime temperature in May in Bellingham16
    16°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in May in Bellingham13
    13 days with some rainfall
  • 7°C minimum night-time temperature in May in Bellingham7
    7°C min night temperature
  • 15 hours of daylight per day in May in Bellingham15
    15 hours of daylight per day
  • No heat & humidity in May in Bellingham0
    No heat & humidity
  • 68 mm monthly rainfall in May in Bellingham68
    68 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Bellingham6
    6 (High) UV index
  • 10°C sea temperature in May in Bellingham10
    10°C sea temperature

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The May weather guide for Washington State (Bellingham) 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 warm is it in Bellingham in May?

Daytime temperatures usually reach 16°C in Bellingham in May, falling to 7°C at night.

How sunny is it in Bellingham in May?

There are normally 7 hours of bright sunshine each day in Bellingham in May - that's 45% of daylight hours.

Is the sea cold around Bellingham in May?

The average sea temperature around Bellingham in May is 10°C.

Does it rain in Bellingham in May?

There are usually 13 days with some rain in Bellingham in May and the average monthly rainfall is 68mm.

Bellingham May sunrise & sunset times

Browse the sunrise and sunset times for Bellingham in May 2025. Select a month to view Bellingham sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:49 19:26
Friday, 16th May 2025 04:27 19:47
Saturday, 31st May 2025 04:12 20:04

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