Twin Falls weather in August 2026

Expect daytime maximum temperatures of 31°C in Twin Falls, Idaho in August based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 31°C maximum daytime temperature in August in Twin Falls31
    31°C max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in August in Twin Falls4
    4 days with some rainfall
  • 12°C minimum night-time temperature in August in Twin Falls12
    12°C min night temperature
  • 14 hours of daylight per day in August in Twin Falls14
    14 hours of daylight per day
  • Moderate heat & humidity in August in Twin FallsM
    Moderate heat & humidity
  • 12 mm monthly rainfall in August in Twin Falls12
    12 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Twin Falls8
    8 (Very High) UV index

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The August weather guide for Idaho (Twin Falls) 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 Twin Falls in August?

Daytime temperatures usually reach 31°C in Twin Falls in August with moderate heat and humidity, falling to 12°C at night.

How sunny is it in Twin Falls in August?

There are normally 11 hours of bright sunshine each day in Twin Falls in August - that's 82% of daylight hours.

Does it rain in Twin Falls in August?

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

Twin Falls August sunrise & sunset times

Browse the sunrise and sunset times for Twin Falls in August 2026. Select a month to view Twin Falls sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 05:30 19:58
Sunday, 16th August 2026 05:46 19:38
Monday, 31st August 2026 06:02 19:13

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