Average temperatures, rainfall and packing tips for San Diego, United States in March
March in San Diego is typically mild, with average daytime highs around 17°C and nights near 10°C. It is one of the cooler months of San Diego's year.
March is one of the wetter months in San Diego, with around 105 mm of rain - plan around showers.
If your dates are flexible, the most comfortable months in San Diego are usually April, May, June, July, August, September, October, November and December.
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In March, San Diego averages a daytime high of about 17°C and a night-time low of around 10°C, based on recent historical data.
March is one of the wetter months in San Diego, with around 105 mm of rain - plan around showers.
March is a workable time to visit San Diego, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in San Diego are usually April, May, June, July, August, September, October, November and December.