Weather in Costa Mesa in July
Costa Mesa, United States averages a high of 25°C (77°F) and low of 17.5°C (63.5°F) in July, with 0 rain days and 13.4 hours of daily sunshine. Travel score: 94.4/100 (Excellent). The best time to visit Costa Mesa is July.
High
25°C77°F
Low
18°C64°F
🌧️
0
rain days
☀️
13.4
hrs/day sunshine
💧
75%
humidity
94— Excellent
July in Costa Mesa is warm and dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Costa Mesa?
How much does it rain in Costa Mesa in July?
Costa Mesa receives an average of 0.9mm of rainfall across 0 rainy days in July. The annual total is 310.6mm.
What should I pack for Costa Mesa in July?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in July?
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