Friday Harbor weather in April 2025

Expect daytime maximum temperatures of 13°C in Friday Harbor, Washington State in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 40 mm of rainfall in the month.

  • 13°C maximum daytime temperature in April in Friday Harbor13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in April in Friday Harbor13
    13 days with some rainfall
  • 5°C minimum night-time temperature in April in Friday Harbor5
    5°C 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
  • 40 mm monthly rainfall in April in Friday Harbor40
    40 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Friday Harbor4
    4 (Moderate) UV index
  • 9°C sea temperature in April in Friday Harbor9
    9°C 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 / mm)  |  Imperial (°F / inches)

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How warm is it in Friday Harbor in April?

Daytime temperatures usually reach 13°C in Friday Harbor in April, falling to 5°C 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.

Is the sea cold around Friday Harbor in April?

The average sea temperature around Friday Harbor in April is 9°C.

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 40mm.

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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