Climate almanac
San Marcos
Texas, United States · 29.88°, -97.94°
What is the weather like in San Marcos in May?
In May, San Marcos is typically 87°F (30°C) during the day and 68°F (20°C) at night. The month brings about 5.2 in (132 mm) of precipitation in total.
- Average high87°F (30°C)
- Average low68°F (20°C)
- Precipitation5.2 in (132 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)