Climate almanac
San Marcos
Guerrero, Mexico · 16.80°, -99.39°
What is the weather like in San Marcos in September?
In September, San Marcos is typically 89°F (32°C) during the day and 76°F (24°C) at night. The month brings about 14 in (356 mm) of precipitation in total.
- Average high89°F (32°C)
- Average low76°F (24°C)
- Precipitation14 in (356 mm)
- Clear or mostly clear days1
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)