Weather in Sunnyvale in May
Sunnyvale, United States averages a high of 21.9°C (71.4°F) and low of 10.9°C (51.6°F) in May, with 3 rain days and 12.9 hours of daily sunshine. Travel score: 88.7/100 (Excellent). The best time to visit Sunnyvale is July.
High
22°C71°F
Low
11°C52°F
🌧️
3
rain days
☀️
12.9
hrs/day sunshine
💧
67%
humidity
89— Excellent
May in Sunnyvale is mild and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Sunnyvale?
How much does it rain in Sunnyvale in May?
Sunnyvale receives an average of 20.4mm of rainfall across 3 rainy days in May. The annual total is 589.5mm.
What should I pack for Sunnyvale in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 22°C
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in May?
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