Climate almanac
St. Catharines
Ontario, Canada · 43.17°, -79.24°
What is the weather like in St. Catharines in August?
In August, St. Catharines is typically 77°F (25°C) during the day and 67°F (20°C) at night. The month brings about 3.2 in (82 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low67°F (20°C)
- Precipitation3.2 in (82 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)