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Sun Valley weather in May 2025
Expect 16°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Sun Valley in May. Check more long-term weather averages for Sun Valley in May before you book your next holiday to Idaho in 2025/2026.
- 1616°C max day temperature
- 9 hours of sunshine per day
- 1111 days with some rainfall
- -1-1°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 4343 mm of monthly rainfall
- 88 (Very High) UV index
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Sun Valley by month
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Recommended for Idaho
The May weather guide for Idaho (Sun Valley) 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)
More about the USA
How warm is it in Sun Valley in May?
Daytime temperatures usually reach 16°C in Sun Valley in May, falling to -1°C at night.
How sunny is it in Sun Valley in May?
There are normally 9 hours of bright sunshine each day in Sun Valley in May - that's 63% of daylight hours.
Does it rain in Sun Valley in May?
There are usually 11 days with some rain in Sun Valley in May and the average monthly rainfall is 43mm.
Sun Valley May sunrise & sunset times
Browse the sunrise and sunset times for Sun Valley in May 2025. Select a month to view Sun Valley sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 05:29 | 19:41 |
Friday, 16th May 2025 | 05:11 | 19:58 |
Saturday, 31st May 2025 | 04:59 | 20:12 |
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