The highest day temperature in March 2025 was 102°F. The lowest night temperature was 74°F. The average values for day and night temperatures during March were 98.6°F и 78.0°F respectivly.

The average sea surface temperature in March 2025 for San Diego was 85.8°F. The maximum and minimum values were 84.0°F and 88.0°F respectively.

Almost all days in March are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in March for San Diego is 0.1 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 11.9 mph. It makes March one of the most windy months of the year for San Diego.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Diego in March is 10.5 hours.