Seattle weather in March 2025

Expect 12°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Seattle in March. Check more long-term weather averages for Seattle in March before you book your next holiday to Washington State in 2025/2026.

  • 12°C maximum daytime temperature in March in Seattle12
    12°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in March in Seattle16
    16 days with some rainfall
  • 3°C minimum night-time temperature in March in Seattle3
    3°C min night temperature
  • 12 hours of daylight per day in March in Seattle12
    12 hours of daylight per day
  • No heat & humidity in March in Seattle0
    No heat & humidity
  • 95 mm monthly rainfall in March in Seattle95
    95 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Seattle3
    3 (Moderate) UV index

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The March 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 / mm)  |  Imperial (°F / inches)

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How warm is it in Seattle in March?

Daytime temperatures usually reach 12°C in Seattle in March, falling to 3°C at night.

How sunny is it in Seattle in March?

There are normally 5 hours of bright sunshine each day in Seattle in March - that's 44% of daylight hours.

Does it rain in Seattle in March?

There are usually 16 days with some rain in Seattle in March and the average monthly rainfall is 95mm.

Seattle March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:49 17:55
Sunday, 16th March 2025 06:19 18:17
Monday, 31st March 2025 05:49 18:38

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