Friday Harbor weather in April 2025

Expect 55°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Friday Harbor in April. Check more long-term weather averages for Friday Harbor in April before you book your next holiday to Washington State in 2025/2026.

  • 55°F maximum daytime temperature in April in Friday Harbor55
    55°F max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in April in Friday Harbor13
    13 days with some rainfall
  • 41°F minimum night-time temperature in April in Friday Harbor41
    41°F min night temperature
  • 14 hours of daylight per day in April in Friday Harbor14
    14 hours of daylight per day
  • No heat & humidity in April in Friday Harbor0
    No heat & humidity
  • 1.6 inches monthly rainfall in April in Friday Harbor1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Friday Harbor4
    4 (Moderate) UV index
  • 48°F sea temperature in April in Friday Harbor48
    48°F sea temperature

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The April 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)  |  Imperial (°F)

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How warm is it in Friday Harbor in April?

Daytime temperatures usually reach 55°F in Friday Harbor in April, falling to 41°F at night.

How sunny is it in Friday Harbor in April?

There are normally 6 hours of bright sunshine each day in Friday Harbor in April - that's 44% of daylight hours.

How warm is the sea around Friday Harbor in April?

The average sea temperature around Friday Harbor in April is 48°F.

Does it rain in Friday Harbor in April?

There are usually 13 days with some rain in Friday Harbor in April and the average monthly rainfall is 1.6 inches.

Friday Harbor April sunrise & sunset times

Browse the sunrise and sunset times for Friday Harbor in April 2025. Select a month to view Friday Harbor sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st April 2025 05:49 18:43
Tuesday, 15th April 2025 05:21 19:04
Wednesday, 30th April 2025 04:53 19:26

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