September Rainfall and Precipitation in Marin County
Average rainfall, rainy days and the driest cities in Marin County, the United States of America in September.
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Best Places to Visit in Marin County in September
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Marin County.
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.
Marin County precipitation in September: frequently asked questions
How much rainfall does Marin County, the United States of America receive in September?
Novato stays mostly dry in September, with average rainfall close to 3.7 mm (0.1 in).
How many days does it rain in Marin County, the United States of America in September?
Expect around a single day rainy days in Novato during September.
Is September part of the rainy season in Marin County, the United States of America?
Not really. September is outside the wettest stretch of the year in Marin County, the United States of America.
Interested in more climate information?
We have much more information about the climate in Marin County.
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