Climate almanac
San José
Alajuela Province, Costa Rica · 10.95°, -85.14°
What is the weather like in San José in January?
In January, San José is typically 79°F (26°C) during the day and 72°F (22°C) at night. The month brings about 6.7 in (171 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low72°F (22°C)
- Precipitation6.7 in (171 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)