The Dalles weather in August 2025

Expect 29°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in The Dalles in August. Check more long-term weather averages for The Dalles in August before you book your next holiday to Oregon in 2025/2026.

  • 29°C maximum daytime temperature in August in The Dalles29
    29°C max day temperature
  • 10 hours of sunshine per day
  • 4 days with some rainfall in August in The Dalles4
    4 days with some rainfall
  • 10°C minimum night-time temperature in August in The Dalles10
    10°C min night temperature
  • 14 hours of daylight per day in August in The Dalles14
    14 hours of daylight per day
  • Moderate heat & humidity in August in The DallesM
    Moderate heat & humidity
  • 12 mm monthly rainfall in August in The Dalles12
    12 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in The Dalles7
    7 (High) UV index

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The August weather guide for Oregon (The Dalles) 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 hot is it in The Dalles in August?

Daytime temperatures usually reach 29°C in The Dalles in August with moderate heat and humidity, falling to 10°C at night.

How sunny is it in The Dalles in August?

There are normally 10 hours of bright sunshine each day in The Dalles in August - that's 73% of daylight hours.

Does it rain in The Dalles in August?

There are usually 4 days with some rain in The Dalles in August and the average monthly rainfall is 12mm.

The Dalles August sunrise & sunset times

Browse the sunrise and sunset times for The Dalles in August 2025. Select a month to view The Dalles sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:49 19:32
Saturday, 16th August 2025 05:07 19:10
Sunday, 31st August 2025 05:25 18:44

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