Idaho weather in August 2019

  • 31°C maximum daytime temperature in August in Idaho (Boise)31
    31°C max day temperature
  • 12 hours of sunshine per day
  • 3 days with some rainfall in August in Idaho (Boise)3
    3 days with some rainfall
  • 13°C minimum night-time temperature in August in Idaho (Boise)13
    13°C min night temperature
  • 14 hours of daylight per day in August in Idaho (Boise)14
    14 hours of daylight per day
  • Moderate heat & humidity in August in Idaho (Boise)M
    Moderate heat & humidity
  • 10 mm monthly rainfall in August in Idaho (Boise)10
    10 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Idaho (Boise)8
    8 (Very High) UV index
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The August weather guide for Idaho, represented by Boise, 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.

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

Guide to Idaho weather in August

The average maximum daytime temperature in Idaho in August is a hot 31°C (88°F) with moderate heat & humidity. The average night-time temperature is usually a cool 13°C (55°F). There are usually 12 hours of bright sunshine each day, which represents 83% of the 14 hours of daylight.

Expect 10mm (0.4 inches) of rainfall across the whole of August with 3 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

The weather in Idaho in August is represented by Boise.

Idaho sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Idaho in August 2019. Select a month to view Idaho sunrise & sunset times for the next twelve months. The Idaho sunrise & sunset times shown below are for Boise.


Date Sunrise times Sunset times
Thursday, 1st August 2019 06:34 21:08
Friday, 16th August 2019 06:51 20:47
Saturday, 31st August 2019 07:07 20:22
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