Climate in San Marcos, California

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.

Weather Highlights

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.

August is the hottest month for San Marcos with an average high temperature of 82.4°, which ranks it as cooler than most places in California. In San Marcos, there are 8 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Marcos are October, June and July.

In San Marcos, there are 20.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

December has the coldest nighttime temperatures for San Marcos with an average of 44.3°. This is warmer than most places in California.

In San Marcos, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In San Marcos, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity in San Marcos is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in August and July. The most humid months (but still comfortable) are August, July and September.

February is the wettest month in San Marcos with 3.1 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 58% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 13.7 inches in San Marcos means that it is drier than most places in California.

February is the rainiest month in San Marcos with 7.2 days of rain, and August is the driest month with only 0.5 rainy days. There are 41.3 rainy days annually in San Marcos, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

There is rarely any recorded snowfall in San Marcos, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in San Marcos.

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