Climate almanac
San Antonio
Dorado, Puerto Rico · 18.45°, -66.30°
What is the weather like in San Antonio in December?
In December, San Antonio is typically 82°F (28°C) during the day and 75°F (24°C) at night. The month brings about 2.0 in (52 mm) of precipitation in total.
- Average high82°F (28°C)
- Average low75°F (24°C)
- Precipitation2.0 in (52 mm)
- Clear or mostly clear days22
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)