Climate almanac
San Antonio
Valparaiso, Chile · -33.59°, -71.61°
What is the weather like in San Antonio in September?
In September, San Antonio is typically 60°F (15°C) during the day and 47°F (8°C) at night. The month brings about 0.8 in (20 mm) of precipitation in total.
- Average high60°F (15°C)
- Average low47°F (8°C)
- Precipitation0.8 in (20 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)