San Diego Weather In January In Celsius

The hottest day in San Diego California in January for the past 65 years was 31°C, while the mean high temperature is 19°C. The lowest measured temperature in San Diego for the last 65 years in January was -2°C, and the mean daily low in the month is 10°C.

San Diego typically receives an average of 5.79 cm of precipitation during the month.