Climate almanac
La Unión
La Union, El Salvador · 13.34°, -87.84°
What is the weather like in La Unión in December?
In December, La Unión is typically 85°F (29°C) during the day and 80°F (26°C) at night. The month brings about 0.3 in (8 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low80°F (26°C)
- Precipitation0.3 in (8 mm)
- Clear or mostly clear days23
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)