May weather forecast and climate
San Rafael, CA

What is the temperature in May in San Rafael?

The average high-temperature, in May, in San Rafael, California, is 71.1°F (21.7°C), while the average low-temperature is 50°F (10°C).

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

In San Rafael, California, in May, during 3.4 rainfall days, typically 1" (24.4mm) of precipitation is accumulated.
Average temperature in May - San Rafael, CA
  • Average high temperature in May: 71°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 May: 50°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 May - San Rafael, CA
  • Average rainfall in May: 1"

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 May - San Rafael, CA
  • Average rainfall days in May: 3.4 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 May - San Rafael, CA
  • Average daylight in May: 14.3h

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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