Weather in San Diego County, United States in March

So you're interested in going to San Diego County, United States in March

March is a slightly cold and dry time for sunbathing in San Diego County. March is a little too cold to enjoy swimming in San Diego County for any length of time. Consider visiting San Diego County in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for March.

Temperature in San Diego County in March

The average maximum temperature in San Diego County in March is 19°. The average maximum temperature is 18° in the previous month and 20° in the next month.

The average temperature in San Diego County in March is 14°. The average temperature ranges is 13° in the previous month and 15° in the next month.

The average minimum temperature in San Diego County in March is 10°. The minimum temperature is in the previous month and 11° in the next month.

Sunshine in San Diego County in March

The average day light hours per day in San Diego County in March are 12 and there are 8.6 hours of sunshine per day on average during March making it a sunny month with few clouds.

The ultraviolet index in San Diego County in March is typically 7.7 during March. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in San Diego County in March

The average sea water temperature in San Diego County in March is 17.5° which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in San Diego County in March

The average total rainfall in San Diego County in March is 4.7cm and on average there are 7.9 rainy days in March making it a dry time to visit the beach.

Humidity in San Diego County in March

The maximum dew point (an indicator of humidity) in San Diego County in March is 11° which is very comfortable. The dew point is in the previous month and 11° in the next month.

The average maximum relative humidity in San Diego County in March is typically 88.2%. The maximum relative humidity is 86.7% in the previous month and 86.8% in the next month.

The average relative humidity in San Diego County in March is typically 71%. The average relative humidity is 68.3% in the previous month and 69.5% in the next month.

Wind Speed in San Diego County in March

The average maximum wind speed in San Diego County in March is typically 20kmh. The average maximum wind speed is 20kmh in the previous month and 21kmh in the next month.

The average wind speed in San Diego County in March is typically 7kmh. The average wind speed is 8kmh in the previous month and 8kmh in the next month.

The average wind direction in San Diego County in March is from the West.

Monthly Averages

Suggested Beaches in March

Book Accomodation Deals