When planning a visit to Marin County in the United States of America, it helps to know that temperatures typically range from 13°C (55°F) in December up to 28°C (82°F) during the peak of September. Our detailed climate overview is based on data from Novato, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Marin County offers pleasant conditions in April, May, June and October, with temperatures typically ranging from 20°C (68°F) to 26°C (79°F).
When it comes to rainfall, Marin County sees significant variations throughout the year. December tends to be the wettest, receiving 145 mm (5.7 in) of rain, while August is much drier with just 0 mm (0 in). The driest conditions can be found during May, June, July, August and September, with rainfall staying below 12 mm (0.5 in).
Visitors hoping to maximize their time in the sun should consider planning their trip for May, when daylight hours are at their peak.
