San Diego, CA has a mild and pleasant Mediterranean climate. The summers are warm and dry, with temperatures usually reaching the mid-70s Fahrenheit (25 Celsius). Winters are mild, with temperatures rarely dropping below 50 degrees Fahrenheit (10 Celsius). Rainfall is low throughout the year, but coastal moisture can make it feel humid in the summer months. Inland areas of San Diego tend to be slightly warmer during the daytime and cooler at night than coastal areas due to differences in elevation.
San Diego, California gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Diego averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 266 sunny days per year in San Diego. The US average is 205 sunny days.
San Diego gets some kind of precipitation, on average, 38 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 79 degrees
Winter Low: the January low is 46
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year