Weather in Boise in August
Boise, United States averages a high of 32.2°C (90°F) and low of 17.5°C (63.5°F) in August, with 1 rain days and 13.1 hours of daily sunshine. Travel score: 97.7/100 (Excellent). The best time to visit Boise is August.
High
32°C90°F
Low
18°C64°F
🌧️
1
rain days
☀️
13.1
hrs/day sunshine
💧
31%
humidity
98— Excellent
August in Boise is hot and dry — excellent conditions for exploring.
What are the average temperatures in Boise?
How much does it rain in Boise in August?
Boise receives an average of 3.4mm of rainfall across 1 rainy days in August. The annual total is 320.6mm.
What should I pack for Boise in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 32°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 15°C from day to night
Traveling to United States in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31