San Miguel, located in Contra Costa County, California has a mild Mediterranean climate with cool, wet winters and hot, dry summers. Average temperatures range from the mid-50s to low 80s Fahrenheit (high single digits to low 30s Celsius). The area usually receives around 19 inches of rain annually. Despite having a warm climate year-round, temperatures can dip significantly during the winter months due to the nearby coastal influence. With its close proximity to San Francisco Bay and the Pacific Ocean, San Miguel experiences strong afternoon breezes most days that help keep temperatures cooler.
San Miguel (Contra Costa County), California gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Miguel (Contra Costa County) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 260 sunny days per year in San Miguel (Contra Costa County). The US average is 205 sunny days.
San Miguel (Contra Costa County) gets some kind of precipitation, on average, 62 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 83 degrees
Winter Low: the January low is 41
Rain: averages 20 inches of rain a year
Snow: averages 0 inches of snow a year