Climate almanac
San Alejo
La Union, El Salvador · 13.43°, -87.96°
What is the weather like in San Alejo in September?
In September, San Alejo is typically 91°F (33°C) during the day and 74°F (23°C) at night. The month brings about 10 in (265 mm) of precipitation in total.
- Average high91°F (33°C)
- Average low74°F (23°C)
- Precipitation10 in (265 mm)
- Clear or mostly clear days2
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)