Weather in Simi Valley in May
Simi Valley, United States averages a high of 24.1°C (75.4°F) and low of 12.8°C (55°F) in May, with 2 rain days and 13 hours of daily sunshine. Travel score: 94/100 (Excellent). The best time to visit Simi Valley is August.
High
24°C75°F
Low
13°C55°F
🌧️
2
rain days
☀️
13
hrs/day sunshine
💧
65%
humidity
94— Excellent
May in Simi Valley is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Simi Valley?
How much does it rain in Simi Valley in May?
Simi Valley receives an average of 11.1mm of rainfall across 2 rainy days in May. The annual total is 375.5mm.
What should I pack for Simi Valley 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
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