With a population of around 23,500, San Lorenzo sits in California, United States. The city operates in the Pacific Time Zone.
In 2025, San Lorenzo recorded an average annual temperature of 57°F — about 2.2°F below the 30-year normal of 59°F. The hottest day reached 92°F in September; the coldest was 31°F in January. Total precipitation was 24 inches (wetter than usual). The wettest month was February.
View current conditions and forecast for San Lorenzo · More cities in California