When to go · Sun Valley
Sun Valley in July
Great month. Inside Sun Valley's best window: Jan–Mar (ski), Jul–Sep (hike, bike, fish).
Key facts
- Verdict
- Great
- Temperature
- 29°C (84°F)84°F (29°C) / 9°C (48°F)48°F (9°C)
- average high / low
- Rain days
- 4
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Sun Valley's best window: Jan–Mar (ski), Jul–Sep (hike, bike, fish).
Is another month better than July?
No other month rates higher than July for Sun Valley in this guide.
Weather in July
- Sun ValleyHighs around 29 °C (84 °F), lows around 9 °C (48 °F), rain on about 4 daysHighs around 84 °F (29 °C), lows around 48 °F (9 °C), rain on about 4 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Independence Day big impact
4 Jul · United States
Fireworks and parades; parks, beaches and flights busy.
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Peak season: parks full, 4 July crowds, 40 °C+ in the desert, humid East. Alaska and the Pacific Northwest are at their best.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Sun Valley, side by side.
Verdict
Jul: Great
Jan: Great
Daytime high
Jul: 29 °C (84 °F)84 °F (29 °C)
Jan: 0 °C (32 °F)32 °F (0 °C)
Night low
Jul: 9 °C (48 °F)48 °F (9 °C)
Jan: -12 °C (10 °F)10 °F (-12 °C)
Rain days
Jul: 4 (better)
Jan: 9
Crowds
Jul: High
Jan: Low
Prices
Jul: High
Jan: Low
Festivals listed
Jul: 1
Jan: 0
July: Inside Sun Valley's best window: Jan–Mar (ski), Jul–Sep (hike, bike, fish).
January: Inside Sun Valley's best window: Jan–Mar (ski), Jul–Sep (hike, bike, fish).
Sun Valley: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings