Hottest (avg)
#9 / 12
San Diego in March
March weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 12h
What to expect
As spring continues, March brings, where the weather is warming up. Daytime highs average 18°C / 64°F, dropping to 10°C / 51°F at night.
You can expect a mix of sun and cloud, with about 7 days seeing some rain.
March in context
How it compares to the rest of the year in San Diego.
Wettest (avg)
#4 / 12
Daylight Hours
#7 / 12
Windiest (avg)
#5 / 12
Highest UV
#7 / 12
Most Humid
#4 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 12.0 hours
- UV index (max)
- 7
- Typical sun hours
- 05:56 – 17:56
Rain & Snow
- Total
-
- Rainy days
- 7
- Cloud cover
- 48%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 77%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is March a good time to visit San Diego?
Typical March days in San Diego reach highs of 18°C (64°F) with nights around 10°C (50°F). It usually feels mild by day and cool after dark. Overall, March sits in the middle of the San Diego climate range.
What are temperatures like in March?
Daytime temperatures in March typically peak near 18°C (64°F), while nights drop to around 10°C (50°F). Expect mild afternoons and cool evenings.
How much does it rain in March?
Rainfall in March averages 48 mm (1.9 in) across roughly 7 days. Overall it is a moderately wet time of year, so showers are usually brief rather than all-day downpours.
How many hours of daylight are there in March?
You can expect about 12 hours of daylight in March. Sunrise is typically around 05:56 and sunset near 17:56. Daylight is fairly typical, with enough time for sightseeing.
How strong is the sun in March?
UV levels are often high (around 7). Regular sunscreen and a hat are recommended.
Is it windy in March?
In March, average wind speeds are around 9 km/h (6 mph), with gusts on the windiest days reaching about 41 km/h (25 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.