Climate almanac
Waterdown
Ontario, Canada · 43.33°, -79.88°
What is the weather like in Waterdown in September?
In September, Waterdown is typically 73°F (23°C) during the day and 56°F (13°C) at night. The month brings about 2.3 in (58 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low56°F (13°C)
- Precipitation2.3 in (58 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)