Planning a trip to San Diego in March? You are in luck! The weather is generally good, with an average maximum temperature of +66°F and approximately 6 sunny days. Just be prepared for some rain, as there are usually around 10 rainy days and 64 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+66°F
Avg. max. temperature
+43°F
Min.
+88°F
Max.
64 mm
Total precipitation
70%
Avg. humidity
3 m/s
Avg. wind
6 ☀️
Sunny Days
14 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: San Diego has good weather in March.
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Average temperature in San Diego in March
Here are the expected maximum, average and minimum temperatures in San Diego for March based on the historical data.
Last Year
Historical Data
Going from a maximum of +73°F during the day to a minimum of +43°F during the night, the temperature in March averages around +61°F.
The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +57°F to +61°F.
Is San Diego warm or cold in March?
San Diego is typically mild in March.
Maximum temperatures go up compared to the previous month from +64°F to +66°F. The minimum temperature also goes up from +52°F to +54°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how March is compared to other months in San Diego:
Water temperature in San Diego in March
Water in San Diego in March is Cold. It varies from +57°F to +62°F, with an average of +59°F.This is almost similar to the air temperature, which averages +66°F.
The water temperature in March is one of the coldest of the entire year:
The warmest water temperatures in San Diego are reached in August, when the average sea temperature rises to +68°F. The coldest water temperatures are in February, with an average of +59°F.
Can you swim in San Diego in March?
We would not recommend swimming in San Diego in March, the water is very cold (+59°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in San Diego in March
San Diego weather looks like this, on average, in March and the surrounding months.
February
March
April
Avg. temperature
+64°F
+66°F
+68°F
Min. temperature
+37°F
+43°F
+43°F
Max. temperature
+86°F
+88°F
+95°F
Rainfall
84 mm
64 mm
27 mm
Wind
2 m/s
3 m/s
3 m/s
Avg. water temperature
+59°F
+59°F
+61°F
Humidity
68%
70%
70%
Air pressure
1017 HPa
1016 HPa
1015 HPa
Sunny days
7
6
7
Cloudy days
11
14
15
Rainy days
10
10
8
Snowy days
0
0
0
March weather is still as good as in February.It’s getting warmer as March arrives. The average maximum temperature goes up from +64°F to +66°F during the day.As March arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 84 mm to 64 mm.Humidity rises from 68% to 70%.Winds are stronger in comparison to February, going up from 2 m/s to 3 m/s on average.The days becoming less sunny, going from 7 sunny days in February to 6 in March.
April brings much the same weather, it remains good.
Wind speed in San Diego in March based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Diego is gradually decreasing during March, going from 7 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during March in San Diego based on historical data.
Last Year
Historical Data
Typically, there is a 48% chance of rain on an average day in March, with total rainfall of approximately 151 mm. The maximum amount of rainfall per day is around 30 mm, which is moderate rain.March is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
March is one of the rainiest months in San Diego, here is a comparison with other months, total mm:
San Diego wettest month is February, where a typical day has a 34% chance of precipitation and 84 mm of rainfall per day. July, on the other hand, is the driest month with a mere 6% chance of precipitation and 2 mm of rainfall per day.
How was the weather last March in San Diego?
This is the weather in San Diego in March 2023:
1 March
🌧️
+58°F
2 March
☀️
+59°F
3 March
☀️
+59°F
4 March
☀️
+58°F
5 March
☁️
+58°F
6 March
☁️
+60°F
7 March
☁️
+59°F
8 March
☁️
+58°F
9 March
☁️
+62°F
10 March
☁️
+62°F
11 March
🌫️
+62°F
12 March
🌫️
+63°F
13 March
☁️
+63°F
14 March
☁️
+64°F
15 March
🌫️
+63°F
16 March
☁️
+60°F
17 March
☀️
+62°F
18 March
☁️
+73°F
19 March
☁️
+66°F
20 March
🌫️
+61°F
21 March
🌫️
+60°F
22 March
🌧️
+61°F
23 March
🌧️
+59°F
24 March
☁️
+61°F
25 March
☀️
+61°F
26 March
☀️
+61°F
27 March
☀️
+67°F
28 March
☀️
+67°F
29 March
☁️
+62°F
30 March
🌧️
+58°F
31 March
☁️
+61°F
In March 2023 San Diego had 8 sunny days, 14 cloudy days, and 4 rainy days. The average maximum temperature was +61°F, with an absolute maximum of +73°F and a minimum of +57°F. The average humidity was 78%, with a maximum of 98% and a minimum of 43%. The average wind speed was 3 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in March?
Climate Change Over the Years
This is how San Diego climate has changed over the last 43 years.
The climate in San Diego in March has not changed that much over the last 43 years.
The average temperature was the lowest in 2001 (+67°F) and the highest in 2014 (+74°F). The driest year was 2002 with only 156 mm of rainfall, and the wettest year was 2023 with 1311 mm.
FAQ
Frequently asked questions about the weather in San Diego in March:
Is March a good time to visit San Diego?
March is a really good time to go to San Diego. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit San Diego.
Can you sunbathe in San Diego in March?
March has mild temperatures in San Diego. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in San Diego in March?
Swimming in San Diego in March is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is San Diego rainy in March?
San Diego is often rainy in March. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in San Diego in March?
Usually, it’s not very sunny in San Diego in March, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in San Diego, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
