San Marcos, California gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Marcos averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 265 sunny days per year in San Marcos. The US average is 205 sunny days.
San Marcos gets some kind of precipitation, on average, 41 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.
Summer High: the July high is around 81 degrees
Winter Low: the January low is 45
Rain: averages 14 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for San Marcos is 9.1 (10=best), which means it is one of the most pleasant places in California.
9.7 / 8.5
Summer / Winter
June, September and July are the most pleasant months in San Marcos, while January and February are the least comfortable months.