The temperatures in San Mateo in January are quite cold with temperatures between 9°C and 15°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in San Mateo during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in San Mateo in January 2025.
If you’re planning to visit San Mateo in the near future, we highly recommend that you review the 14 day weather forecast for San Mateo before you arrive.
Temperatures
15° / 9°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
92
mm
Sun Hours
7.5
Hrs
