Weather in St. Catharines in August
St. Catharines, Canada averages a high of 25.3°C (77.5°F) and low of 19.1°C (66.4°F) in August, with 10 rain days and 11.3 hours of daily sunshine. Travel score: 82.1/100 (Excellent). The best time to visit St. Catharines is August.
High
25°C78°F
Low
19°C66°F
🌧️
10
rain days
☀️
11.3
hrs/day sunshine
💧
74%
humidity
82— Excellent
August in St. Catharines is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in St. Catharines?
How much does it rain in St. Catharines in August?
St. Catharines receives an average of 71.2mm of rainfall across 10 rainy days in August. The annual total is 934.7mm.
What should I pack for St. Catharines in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Canada in August?
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