San Diego, CA weather in March
San Diego is mild in March, with some rain: highs average 67°F and nights drop to about 55°F. Expect about 6 wet days. A great month for outdoor plans.
- Normal high
- 67°F
- Normal low
- 55°F
- Wet days
- 6
- 1.5 in total
- Muggy days
- 0
- dew point 65°F+
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 66°F | 68°F |
| Normal low | 53°F | 56°F |
| Chance of a wet day | 24% | 17% |
| Sunrise / sunset | 6:16 am / 5:45 pm | 6:37 am / 7:07 pm |
| Daylight | 11.5 h | 12.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical March day
- 6 am55°Fdew point 47°F
- 9 am60°Fdew point 47°F
- Noon65°Fdew point 48°F
- 3 pm64°Fdew point 48°F
- 6 pm61°Fdew point 49°F
- 9 pm59°Fdew point 50°F
NOAA hourly normals (local standard time) from San Diego Lindbergh Fld (2 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F17 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph1 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow6 of 31
- Notable rainat least 0.10 in3 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain in March
Normal precipitation is 1.5 in; a dry March brings about 0.6 in and a wet one about 1.4 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How March varies from year to year
- Warmest March, 1991-20202015: average high 74°F
- Coolest March2006: average high 63°F
- Wettest March1991: 7.0 in
- Driest March1997: no measurable precipitation
- Highest reading91°F (March 29, 2004)
- Lowest reading42°F (March 16, 1991)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 66°F | 67°F | 69°F |
| Normal low | 52°F | 55°F | 57°F |
| Wet days | 7 | 6 | 4 |
| Comfortable days | 12 | 17 | 20 |
| Daylight | 11.0 h | 12.0 h | 13.0 h |
Highs change by +1°F from February and +2°F into April.
Nearby alternatives in March
- Warmer: Corona, CA84 mi · high 73°F · 5 wet days
- Drier: Palm Springs, CA85 mi · high 81°F · 2 wet days
- Cooler: Oceanside, CA36 mi · high 62°F · 5 wet days
How San Diego ranks in March
- Normal high134th warmest of 378 cities; 35th of 60 in California
- Wet days74th driest of 378
- Comfortable days32nd most of 339
Heating and cooling
March has 142 heating degree days and 10 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How cold is San Diego in March?
The normal high is 67°F and the normal low is 55°F. From 1991 to 2020 the coldest March reading was 42°F (March 16, 1991).
Does it rain a lot in San Diego in March?
About 6 days in March have at least 0.01 in of precipitation, and the normal total is 1.5 in. The wettest March in 1991-2020 was in 1991 (7.0 in); the driest was in 1997, with no measurable precipitation.
Is March a good time to visit San Diego?
March ranks 6th of 12 months on our comfort score for San Diego (72 out of 100). It has about 17 comfortable days. The best months are May and June.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: San Diego Lindbergh Fld (USW00023188), 2.0 mi NW of the city center, 15 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Chula Vista (USC00041758), 6.7 mi SE of the city center, 56 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: San Diego International Airport (722900-23188), 2.0 mi NW of the city center, 15 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).