Climate almanac
San José
Alajuela Province, Costa Rica · 10.95°, -85.14°
What is the weather like in San José in May?
In May, San José is typically 83°F (28°C) during the day and 76°F (24°C) at night. The month brings about 9.4 in (239 mm) of precipitation in total.
- Average high83°F (28°C)
- Average low76°F (24°C)
- Precipitation9.4 in (239 mm)
- Clear or mostly clear days2
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)