Climate almanac
San Mateo
California, United States · 37.56°, -122.33°
What is the weather like in San Mateo in October?
In October, San Mateo is typically 73°F (23°C) during the day and 55°F (13°C) at night. The month brings about 1.0 in (25 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low55°F (13°C)
- Precipitation1.0 in (25 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)