San Mateo
California, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
San Mateo, CA

A unique breathtaking view of the scenic spot of the Devil
A unique breathtaking view of the scenic spot of the Devil's Slide Sheer Cliff over the pacific Coast in San Mateo, California, cute flowers and blue sky
January, the same as December, in San Mateo, California, is another mild winter month, with average temperature ranging between max 57.9°F (14.4°C) and min 39.9°F (4.4°C).

Temperature

The coldest months are January and December, with an average high-temperature of 57.9°F (14.4°C).

Daylight

The average length of the day in January is 9.9h.

What is the coldest month in San Mateo?

The coldest months in San Mateo are January and December, with an average high-temperature of 57.9°F (14.4°C).

What is the temperature in January in San Mateo?

In January, in San Mateo, California, the average high-temperature is 57.9°F (14.4°C), and the average low-temperature is 39.9°F (4.4°C).

What is the average length of the day in January in San Mateo?

The average length of the day in January in San Mateo, California, is 9.9h.
Average temperature in January - San Mateo, CA
  • Average high temperature in January: 58°F

The warmest month (with the highest average high temperature) is July (82°F).
Months with the lowest average high temperature are January and December (58°F).

  • Average low temperature in January: 40°F

Months with the highest average low temperature are July and August (56°F).
Coldest months (with the lowest average low temperature) are January and December (40°F).

Average daylight in January - San Mateo, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).