San Diego California Climate Data

Monthly Average Climate Data for San Diego California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January48.4 °F66.0 °F1.9 in.
February49.3 °F65.5 °F2.39 in.
March51.6 °F66.0 °F1.62 in.
April53.9 °F68.1 °F0.72 in.
May57.8 °F69.2 °F0.21 in.
June60.8 °F71.0 °F0.04 in.
July64.1 °F74.5 °F0.06 in.
August65.3 °F76.7 °F0.02 in.
September63.8 °F76.8 °F0.11 in.
October58.8 °F74.3 °F0.41 in.
November52.8 °F70.6 °F0.81 in.
December47.7 °F65.6 °F1.65 in.
Annual56.2 °F70.4 °F9.94 in.

Climate Data for San Diego California

Average First Frost DateFrost Rare
Average Last Frost DateFrost Rare
Average Days With FrostFrost Free
Plant Hardiness Zone - 2023Zone 10b : 35°F to 30°F
Plant Hardiness Zone - 2012Zone 10b : 35°F to 30°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate