San Rafael Weather in October

The climate in San Rafael during October can be summarized as mild and reasonably dry.

October is in the fall / autumn in San Rafael and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (71°F), whilst at night 10°C (50°F) is normal.

On average October is the 6th driest month of the year in San Rafael with around 54mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.7 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Rafael in October 2025.