Weather in El Cajon in May
El Cajon, United States averages a high of 22°C (71.6°F) and low of 12.9°C (55.2°F) in May, with 2 rain days and 12.4 hours of daily sunshine. Travel score: 89.8/100 (Excellent). The best time to visit El Cajon is July.
High
22°C72°F
Low
13°C55°F
🌧️
2
rain days
☀️
12.4
hrs/day sunshine
💧
71%
humidity
90— Excellent
May in El Cajon is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in El Cajon?
How much does it rain in El Cajon in May?
El Cajon receives an average of 12.1mm of rainfall across 2 rainy days in May. The annual total is 314.3mm.
What should I pack for El Cajon in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
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Light layers and t-shirts
Warm weather around 22°C
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Sunscreen SPF 30+
12 hours of sunshine daily
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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