Weather in Saint Charles in July
Saint Charles, United States averages a high of 30.6°C (87.1°F) and low of 21.4°C (70.5°F) in July, with 10 rain days and 12.2 hours of daily sunshine. Travel score: 84.3/100 (Excellent). The best time to visit Saint Charles is September.
High
31°C87°F
Low
21°C71°F
🌧️
10
rain days
☀️
12.2
hrs/day sunshine
💧
70%
humidity
84— Excellent
July in Saint Charles is hot and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Saint Charles?
How much does it rain in Saint Charles in July?
Saint Charles receives an average of 99.1mm of rainfall across 10 rainy days in July. The annual total is 1062.1mm.
What should I pack for Saint Charles in July?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 31°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in July?
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