United StatesAverage weather for San Diego in March
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.
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. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
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.
Water temperature
The water temperature at San Diego is 17°C this month. You can swim, but it's a bit chilly.
In March, there is an average of 35 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the West.
San Diego in March |
New York | ||
|---|---|---|---|
 Average temperature |
20°C | 11°C | |
 Max. temperature |
22°C | 14°C | |
| Min. temperature |
18°C | -5°C | |
 Total precipitation |
35 mm | 63 mm | |
| Rainy days |
5 days | 10 days | |
February
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.
Is March a good time to visit San Diego?
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.
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.
Check out the climate of San Diego for all months and discover the best travel time
Daily Temperature in March in San Diego
This chart shows the average daily high and low temperatures in March for San Diego, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in March in San Diego
The chart below shows the average daily precipitation in March for San Diego, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for March, you can expect about 5 days of precipitation in San Diego.
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.
Temperature in March in San Diego over the years
This chart shows the average temperature in March in San Diego, measured in degrees Celsius, over the past few years.
Total precipitation in March in San Diego over the years
This chart shows the average precipitation in March in San Diego, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
Weather experiences in March in San Diego
Have you been to San Diego in March?
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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.
Or check out the climate of San Diego for all months at once
