Portland weather in October 2025

Expect 17°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Portland in October. Check more long-term weather averages for Portland in October before you book your next holiday to Oregon in 2025/2026.

  • 17°C maximum daytime temperature in October in Portland17
    17°C max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in October in Portland11
    11 days with some rainfall
  • 6°C minimum night-time temperature in October in Portland6
    6°C min night temperature
  • 11 hours of daylight per day in October in Portland11
    11 hours of daylight per day
  • No heat & humidity in October in Portland0
    No heat & humidity
  • 84 mm monthly rainfall in October in Portland84
    84 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Portland3
    3 (Moderate) UV index

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The October weather guide for Oregon (Portland) 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 Portland in October?

Daytime temperatures usually reach 17°C in Portland in October, falling to 6°C at night.

How sunny is it in Portland in October?

There are normally 5 hours of bright sunshine each day in Portland in October - that's 46% of daylight hours.

Does it rain in Portland in October?

There are usually 11 days with some rain in Portland in October and the average monthly rainfall is 84mm.

Portland October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:09 17:50
Thursday, 16th October 2025 06:29 17:23
Friday, 31st October 2025 06:50 16:59

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