Washington State weather in October 2025

Expect 16°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Washington State in October. Check more long-term weather averages for Washington State in October before you book your next holiday to Washington State in 2025/2026.

  • 16°C maximum daytime temperature in October in Washington State (Seattle)16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in October in Washington State (Seattle)12
    12 days with some rainfall
  • 8°C minimum night-time temperature in October in Washington State (Seattle)8
    8°C min night temperature
  • 11 hours of daylight per day in October in Washington State (Seattle)11
    11 hours of daylight per day
  • No heat & humidity in October in Washington State (Seattle)0
    No heat & humidity
  • 87 mm monthly rainfall in October in Washington State (Seattle)87
    87 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Washington State (Seattle)3
    3 (Moderate) UV index

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The October 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.

Top Washington State destinations

Below are average maximum temperatures at popular countries, regions and places in Washington State in October. Select a holiday destination to see more weather parameters.

All Washington State destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Washington State in October?

Daytime temperatures usually reach 16°C in Seattle, Washington State in October, falling to 8°C at night.

How sunny is it in Washington State in October?

There are normally 5 hours of bright sunshine each day in Seattle, Washington State in October - that's 42% of daylight hours.

Does it rain in Washington State in October?

There are usually 12 days with some rain in Seattle, Washington State in October and the average monthly rainfall is 87mm.

Washington State October sunrise & sunset times

Browse the sunrise and sunset times for Washington State in October 2025. Select a month to view Washington State sunrise and sunset times for the next 12 months. The Washington State sunrise and sunset times shown below are for Seattle.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:09 17:48
Thursday, 16th October 2025 06:30 17:18
Friday, 31st October 2025 06:53 16:53

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