Climate almanac
San Mateo
California, United States · 37.56°, -122.33°
What is the weather like in San Mateo in May?
In May, San Mateo is typically 67°F (20°C) during the day and 52°F (11°C) at night. The month brings about 0.8 in (19 mm) of precipitation in total.
- Average high67°F (20°C)
- Average low52°F (11°C)
- Precipitation0.8 in (19 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)