December weather forecast and climate
San Rafael, CA

What is the coldest month in San Rafael?

January and December, with an average high-temperature of 55°F (12.8°C), are the coldest months in San Rafael, California.

What is the temperature in December in San Rafael?

In San Rafael, in December, the average high-temperature is 55°F (12.8°C), and the average low-temperature is 41°F (5°C).

How many days does it rain in December in San Rafael?

In December, in San Rafael, California, the rain falls for 10.4 days. Throughout December, 6" (151.6mm) of precipitation is accumulated.
Average temperature in December - San Rafael, CA
  • Average high temperature in December: 55°F

Warmest months (with the highest average high temperature) are July and August (80°F).
Months with the lowest average high temperature are January and December (55°F).

  • Average low temperature in December: 41°F

Months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is December (41°F).

Average rainfall in December - San Rafael, CA
  • Average rainfall in December: 6"

The wettest month (with the highest rainfall) is February (7.9").
The driest month (with the lowest rainfall) is July (0").

Average rainfall days in December - San Rafael, CA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is January (12.2 days).
The month with the lowest number of rainy days is July (0 days).

Average daylight in December - San Rafael, CA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).

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