San Diego California 30 Day Weather Forecast 2025. Explore comprehensive december 2025 weather forecasts for san diego, including daily high and low temperatures, precipitation risks, and monthly temperature trends. 30dayweather long range weather forecasts predict ideal conditions for a storm.

30dayweather long range weather forecasts predict ideal conditions for a storm. Historical record of san diego, california weather for the year 2025 based on noaa data.