Avg High
San Diego in March
Verdict
In San Diego, March has a distinct spring feel. As the season moves along, the weather is warming up. You can usually expect a mild month that feels manageable day to day. Breezes can be part of the character, especially in exposed spots.
It suits travellers who want straightforward weather for sightseeing and day trips. Lookouts and coastal walks can feel sharper when the wind is up.
Avg Low
Rain
Daylight
12h
What to expect
- Temperature feel - Comfortable days with evenings that feel distinctly cooler. The “feels like” is usually in line with the air temperature.
- Showers & dry spells - On-and-off showers. You’ll get wet windows, then dry windows. It’s worth being prepared for occasional rain.
- Midday sun - Strong sun. Plan big outdoor blocks earlier or later to dodge the peak. It's the kind of sun you notice immediately.
- Exposure - Refreshing breezes, and gusts can catch you in exposed spots. It’s the kind of wind you plan around for viewpoints and coastal walks.
March in context
How it compares to the rest of the year in San Diego.
Hottest (avg)
#9 / 12
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.