Twin Falls weather in May 2026

Expect daytime maximum temperatures of 70°F in Twin Falls, Idaho in May based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 70°F maximum daytime temperature in May in Twin Falls70
    70°F max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in May in Twin Falls8
    8 days with some rainfall
  • 41°F minimum night-time temperature in May in Twin Falls41
    41°F min night temperature
  • 15 hours of daylight per day in May in Twin Falls15
    15 hours of daylight per day
  • No heat & humidity in May in Twin Falls0
    No heat & humidity
  • 1.1 inches monthly rainfall in May in Twin Falls1.1
    1.1 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Twin Falls8
    8 (Very High) UV index

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The May 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)  |  Imperial (°F)

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How hot is it in Twin Falls in May?

Daytime temperatures usually reach 70°F in Twin Falls in May, falling to 41°F at night.

How sunny is it in Twin Falls in May?

There are normally 10 hours of bright sunshine each day in Twin Falls in May - that's 71% of daylight hours.

Does it rain in Twin Falls in May?

There are usually 8 days with some rain in Twin Falls in May and the average monthly rainfall is 1.1 inches.

Twin Falls May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:32 19:38
Saturday, 16th May 2026 05:15 19:54
Sunday, 31st May 2026 05:03 20:08

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