San Diego weather in March: San Diego, California: normal highs, lows, rain and records for March
San Diego in March has a normal high of 67°F and a normal low of 55°F, a daily mean of 61°F, rising from 66°F on the 1st to 68°F by the 31st. Measurable precipitation falls on 6 days in a normal March, 1.46 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 13°C, 37 mm of precipitation in March.
- NOAA stationSan Diego Lindbergh Field
- Station IDUSW00023188
- Location32.73°N 117.18°W
- Elevation15 ft (5 m)
- From the center6 miles
- Population1,404,452
- Jan 66° 50°
- Feb 66° 52°
- Mar 67° 55°
- Apr 69° 57°
- May 70° 60°
- Jun 72° 63°
- Jul 75° 66°
- Aug 77° 68°
- Sep 77° 66°
- Oct 75° 62°
- Nov 71° 55°
- Dec 66° 50°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is San Diego in March?
The normal high is 67°F and the normal low 55°F, for a daily mean of 60.7°F. March is 1.7°F warmer than February and 2.2°F cooler than April. March is the 9th warmest month of the year in San Diego and the 4th wettest. Across the month the normal high rises 2°F, from 66°F on March 1 to 68°F on March 31. From one year to the next March's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 59°F and 63°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 25%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 66°F | 53°F | 25% | 13% |
| March 8 | 67°F | 54°F | 23% | 12% |
| March 15 | 67°F | 55°F | 21% | 11% |
| March 22 | 67°F | 55°F | 19% | 10% |
| March 31 | 68°F | 56°F | 16% | 8% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 66°F | 53°F | 25% | 13% | 11 h 30 min |
| March 2 | 66°F | 53°F | 25% | 13% | 11 h 30 min |
| March 3 | 66°F | 53°F | 24% | 13% | 11 h 30 min |
| March 4 | 66°F | 53°F | 24% | 13% | 11 h 30 min |
| March 5 | 66°F | 54°F | 24% | 13% | 11 h 40 min |
| March 6 | 67°F | 54°F | 24% | 12% | 11 h 40 min |
| March 7 | 67°F | 54°F | 23% | 12% | 11 h 40 min |
| March 8 | 67°F | 54°F | 23% | 12% | 11 h 40 min |
| March 9 | 67°F | 54°F | 23% | 12% | 11 h 40 min |
| March 10 | 67°F | 54°F | 22% | 12% | 11 h 50 min |
| March 11 | 67°F | 54°F | 22% | 11% | 11 h 50 min |
| March 12 | 67°F | 54°F | 22% | 11% | 11 h 50 min |
| March 13 | 67°F | 54°F | 21% | 11% | 11 h 50 min |
| March 14 | 67°F | 54°F | 21% | 11% | 11 h 50 min |
| March 15 | 67°F | 55°F | 21% | 11% | 12 h |
| March 16 | 67°F | 55°F | 20% | 11% | 12 h |
| March 17 | 67°F | 55°F | 20% | 10% | 12 h |
| March 18 | 67°F | 55°F | 20% | 10% | 12 h |
| March 19 | 67°F | 55°F | 19% | 10% | 12 h |
| March 20 | 67°F | 55°F | 19% | 10% | 12 h 10 min |
| March 21 | 67°F | 55°F | 19% | 10% | 12 h 10 min |
| March 22 | 67°F | 55°F | 19% | 10% | 12 h 10 min |
| March 23 | 67°F | 55°F | 18% | 9% | 12 h 10 min |
| March 24 | 67°F | 55°F | 18% | 9% | 12 h 10 min |
| March 25 | 68°F | 55°F | 18% | 9% | 12 h 20 min |
| March 26 | 68°F | 55°F | 17% | 9% | 12 h 20 min |
| March 27 | 68°F | 56°F | 17% | 9% | 12 h 20 min |
| March 28 | 68°F | 56°F | 17% | 9% | 12 h 20 min |
| March 29 | 68°F | 56°F | 16% | 8% | 12 h 20 min |
| March 30 | 68°F | 56°F | 16% | 8% | 12 h 30 min |
| March 31 | 68°F | 56°F | 16% | 8% | 12 h 30 min |
- Normal high
- 67°FMarch average
- Normal low
- 55°FMarch average
- Precipitation
- 1.46 inmonth total
- Days with precipitation
- 60.01 inch or more
- Daylight
- 11 h 30 min to 12 h 30 minMarch 1 to March 31
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023188; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in San Diego in March?
On a given March day the chance of 0.01 inch or more is 20% on average, highest around March 1 (25%). In all, 1.46 in falls on 6 days of a normal March.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023188.
How humid and windy is San Diego in March?
At 3 p.m. the normal temperature is 65°F with 56% relative humidity and a dew point of 49°F; at 6 a.m. it is 56°F with 73% humidity. The wind averages 6.8 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 56°F | 48°F | 73% | 4.2 mph | 29% |
| 9 a.m. | 61°F | 48°F | 62% | 6.0 mph | 31% |
| noon | 65°F | 48°F | 55% | 10.7 mph | 41% |
| 3 p.m. | 65°F | 49°F | 56% | 11.0 mph | 39% |
| 6 p.m. | 62°F | 49°F | 63% | 8.4 mph | 36% |
| 9 p.m. | 60°F | 50°F | 69% | 5.3 mph | 39% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023188. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for March in San Diego?
The warmest March temperature on San Diego's official record (since 1874) is 99°F, on March 29, 1879; the coldest is 36°F, on March 5, 1894. The wettest March brought 6.96 in (1991).
The March mean against the 1991-2020 normal of 60.7°F: 2021 58.9°F (−1.8), 2022 59.4°F (−1.3), 2023 56.8°F (−3.9), 2024 59.5°F (−1.2), 2025 58.7°F (−2.0), 2026 66.0°F (+5.3). 1 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 58.9°F | −1.8°F | 1.48 in |
| 2022 | 59.4°F | −1.3°F | 1.61 in |
| 2023 | 56.8°F | −3.9°F | 3.97 in |
| 2024 | 59.5°F | −1.2°F | 2.54 in |
| 2025 | 58.7°F | −2.0°F | 2.91 in |
| 2026 | 66.0°F | +5.3°F | 0.00 in |
Source: records: ACIS, NWS threaded record SANthr; recent months: ACIS, station USW00023188. Records and recent months use complete months only.
How does March in San Diego compare across California?
Across the 219 places PlainClimate covers in California, March normal highs run from 43°F in Tahoma to 81°F in Brawley; San Diego's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.