Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Sun Valley Weather in August
August in Sun Valley brings high temperatures, with daytime highs of 26°C (79°F) and nights around 7°C (45°F). The excellent weather makes it a solid choice for a visit.
Rainfall in Sun Valley in August
Based on our climate data of the past 30 years, about 6 days of rain are anticipated, with 18 mm (0.7 in) on average. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Sun Valley in August
August tends to be one of the excellent months in Sun Valley, with 26°C (79°F) in the afternoon and 7°C (45°F) overnight. August is a notable month of the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Sun Valley.
Sun Valley Temperature in August
Min Temperature
7°C (45°F)
Max Temperature
26°C (79°F)
Chance of Rain
19%
Precipitation
18 mm (0.7 in)
Rainy days
6 days
Sun Valley Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sun Valley - and find the best time to visit.
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Sun Valley in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Sun Valley in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping5/10 -
Outdoor sports8/10
Sun Valley 3-Day Forecast
More climate data for Sun Valley
See the full Sun Valley climate overview or explore weather in the United States of America.
Popular in August
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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