Climate almanac
Costa Rica
Mato Grosso do Sul, Brazil · -18.54°, -53.13°
What is the weather like in Costa Rica in December?
In December, Costa Rica is typically 86°F (30°C) during the day and 70°F (21°C) at night. The month brings about 7.2 in (182 mm) of precipitation in total.
- Average high86°F (30°C)
- Average low70°F (21°C)
- Precipitation7.2 in (182 mm)
- Clear or mostly clear days4
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)