Climate almanac
San Luis
Arizona, United States · 32.49°, -114.78°
What is the weather like in San Luis in September?
In September, San Luis is typically 102°F (39°C) during the day and 77°F (25°C) at night. The month brings about 0.7 in (17 mm) of precipitation in total.
- Average high102°F (39°C)
- Average low77°F (25°C)
- Precipitation0.7 in (17 mm)
- Clear or mostly clear days26
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)