March weather in San Diego, CA
The average temperature in San Diego in March is 59.1°F (49.6°F–68.5°F). Average precipitation: 1.63 inches.
March is a spring month in San Diego, and is cooler than the annual average of 64.1°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 11h 48m. For travel, March is a comfortable month to visit.
Avg High
68.5°F
Avg Low
49.6°F
Precipitation
1.63 in
Daylight
11h 48m
March records in San Diego
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 86.0°F (2026) | 39.0°F (2007) | 0.58 in (2014) |
| March 2 | 87.1°F (2009) | 35.1°F (2023) | 0.37 in (2024) |
| March 3 | 77.0°F (2017) | 39.0°F (2002) | 0.91 in (2021) |
| March 4 | 84.9°F (2012) | 39.9°F (2002) | 1.05 in (2005) |
| March 5 | 81.0°F (2011) | 42.1°F (2006) | 0.76 in (2000) |
| March 6 | 84.0°F (2015) | 39.9°F (2000) | 0.98 in (2025) |
| March 7 | 84.0°F (2004) | 42.1°F (1998) | 0.42 in (2016) |
| March 8 | 88.0°F (2004) | 39.0°F (2012) | 1.00 in (2013) |
| March 9 | 82.9°F (2004) | 41.0°F (2000) | 0.18 in (2001) |
| March 10 | 81.0°F (2017) | 42.1°F (2000) | 0.61 in (2023) |
| March 11 | 89.1°F (2007) | 39.9°F (2022) | 0.59 in (2021) |
| March 12 | 90.0°F (2026) | 39.9°F (1999) | 0.91 in (2020) |
| March 13 | 91.0°F (2026) | 39.9°F (1999) | 0.84 in (2025) |
| March 14 | 93.0°F (2015) | 39.9°F (2006) | 0.20 in (2023) |
| March 15 | 91.9°F (2015) | 43.0°F (1999) | 1.44 in (2023) |
| March 16 | 90.0°F (2015) | 41.0°F (1999) | 0.53 in (2003) |
| March 17 | 93.9°F (2026) | 41.0°F (2008) | 0.61 in (2012) |
| March 18 | 88.0°F (2026) | 42.1°F (1999) | 0.32 in (2006) |
| March 19 | 91.9°F (2026) | 39.0°F (2002) | 0.19 in (2012) |
| March 20 | 95.0°F (2026) | 42.1°F (2012) | 0.83 in (2011) |
| March 21 | 82.9°F (2026) | 42.1°F (1999) | 1.38 in (2023) |
| March 22 | 84.9°F (2022) | 39.9°F (2006) | 0.47 in (2005) |
| March 23 | 88.0°F (2008) | 42.1°F (2009) | 0.29 in (2011) |
| March 24 | 84.0°F (2008) | 45.0°F (2009) | 0.17 in (2005) |
| March 25 | 82.0°F (2022) | 44.1°F (2023) | 0.51 in (1999) |
| March 26 | 88.0°F (2015) | 43.0°F (2023) | 0.18 in (2014) |
| March 27 | 91.9°F (2015) | 43.0°F (2023) | 0.12 in (2020) |
| March 28 | 89.1°F (2004) | 42.1°F (2007) | 0.59 in (2022) |
| March 29 | 91.9°F (2004) | 43.0°F (1998) | 0.33 in (2023) |
| March 30 | 87.1°F (2003) | 39.0°F (1998) | 1.33 in (2024) |
| March 31 | 88.0°F (2021) | 44.1°F (2023) | 0.30 in (2024) |