Weather in Sunnyvale in August
Sunnyvale, United States averages a high of 27.6°C (81.7°F) and low of 15°C (59°F) in August, with 0 rain days and 12.9 hours of daily sunshine. Travel score: 98.1/100 (Excellent). The best time to visit Sunnyvale is July.
High
28°C82°F
Low
15°C59°F
🌧️
0
rain days
☀️
12.9
hrs/day sunshine
💧
65%
humidity
98— Excellent
August in Sunnyvale is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Sunnyvale?
How much does it rain in Sunnyvale in August?
Sunnyvale receives an average of 1mm of rainfall across 0 rainy days in August. The annual total is 589.5mm.
What should I pack for Sunnyvale in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°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