About San Marino, CA

San Marino, in California, United States, is home to roughly 13,500 people in the Pacific Time Zone at 34.1°N latitude.

Expect a humid subtropical climate in San Marino: average highs of 82°F in midsummer, lows near 49°F in midwinter, and an annual mean of 66°F. Precipitation totals roughly 14 inches per year, concentrated around February, with August typically the driest month.