Climate almanac
San Tan Valley
Arizona, United States · 33.19°, -111.53°
What is the weather like in San Tan Valley in September?
In September, San Tan Valley is typically 99°F (37°C) during the day and 75°F (24°C) at night. The month brings about 1.1 in (28 mm) of precipitation in total.
- Average high99°F (37°C)
- Average low75°F (24°C)
- Precipitation1.1 in (28 mm)
- Clear or mostly clear days22
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)