Weather in Fullerton in May
Fullerton, United States averages a high of 24°C (75.2°F) and low of 13.3°C (55.9°F) in May, with 1 rain days and 12.7 hours of daily sunshine. Travel score: 93.2/100 (Excellent). The best time to visit Fullerton is August.
High
24°C75°F
Low
13°C56°F
🌧️
1
rain days
☀️
12.7
hrs/day sunshine
💧
68%
humidity
93— Excellent
May in Fullerton is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Fullerton?
How much does it rain in Fullerton in May?
Fullerton receives an average of 7.7mm of rainfall across 1 rainy days in May. The annual total is 311.3mm.
What should I pack for Fullerton in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in May?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31