Which is the hottest month in Sun Valley?

The hottest time of year in Sun Valley is normally July. Expect maximum daytime temperatures to reach 26°C with no heat and humidity.

Which month has the most rain in Sun Valley?

In terms of rainfall, January is usually the wettest month in Sun Valley with 67mm on average. There are normally 13 days in January with some rain.

When is it sunniest in Sun Valley?

The sunniest time of year in Sun Valley is normally July with bright sunshine on average for 78% of daylight hours; that's 12 hours of sunshine per day.

Best time to visit Sun Valley

Q: When is the best time to visit Sun Valley?

The best time to visit Sun Valley is July and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C.

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Sun Valley by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Sun Valley?

The best time to visit Sun Valley is July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]

Change the criteria to reflect your weather preferences.

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Jan
0
Feb
0
Mar
0
Apr
0
May
3.5
Jun
5
Jul
5
Aug
3.5
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-2
Jan
1
Feb
4
Mar
10
Apr
16
May
20
Jun
26
Jul
25
Aug
20
Sep
13
Oct
4
Nov
-1
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Idaho (Sun Valley) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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