San Diego Weather in March

The climate in San Diego during March can be summarized as mild and reasonably dry.

March is in the spring in San Diego and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 19°C (67°F), whilst at night 10°C (49°F) is normal.

On average March is the 2nd wettest month of the year in San Diego with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Diego in March 2024.