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United StatesThe weather in March in San Diego
It's pleasantly warm in March in San Diego with an average temperature of 20°C. Temperatures this month range from a low of 18°C to a high of 22°C. At night, you can expect temperatures between 11°C and 14°C.
Looking for great weather? March is a good time to be in San Diego. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in March for San Diego, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2015, San Diego reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was 14°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 21°C.
Water temperature
The water temperature at San Diego is 17°C this month. You can swim, but it's a bit chilly.
Rainfall amount
In March, there is an average of 35 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in March for San Diego
Click on any day in March to get detailed info about the usual weather on that day in San Diego. Check out the historical temperatures and precipitation over the past 10 years on this day.
March weather comparison
| San Diego | New York | |
|---|---|---|
| Average temperature | 20°C | 11°C |
| Max. temperature | 22°C | 14°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 35 mm | 63 mm |
| Rainy days | 7 days | 10 days |
Start of March
The month of March starts in San Diego with mild temps, averaging around 20°C during the day and nights around 13°C.
Mid March
By mid-March, daytime temps rise to around 21°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of March
By the end of March, the average daytime temperature in San Diego is around 21°C, while nighttime temps are about 14°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of San Diego for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in March in San Diego, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in March in San Diego
Temperature in March in San Diego over the years
Precipitation charts
These charts show the average amount of precipitation in March in San Diego, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in March in San Diego
Total precipitation in March in San Diego over the years
Daily UV index in March in San Diego
This chart shows the average daily UV index in March in San Diego, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in March in San Diego
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Average weather in San Diego by month
Click on a month below to see detailed weather info for San Diego. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.