Millbrae, CA has a mild Mediterranean climate characterized by warm and dry summers and cool and wet winters. On average, temperatures stay between 40-70°F throughout the year, with occasional heat waves during summer months. Rainfall is spread out evenly throughout the year, but winter months tend to see more precipitation than summer months. Millbrae also experiences foggy conditions during the spring and fall months due to its proximity to San Francisco Bay. These weather patterns make it an ideal place for outdoor activities such as hiking, biking, camping, fishing, and picnicking all year round.
Millbrae, California gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Millbrae averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 262 sunny days per year in Millbrae. The US average is 205 sunny days.
Millbrae gets some kind of precipitation, on average, 69 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 70 degrees
Winter Low: the January low is 46
Rain: averages 25 inches of rain a year
Snow: averages 0 inches of snow a year