San Diego, CA
Climate overview — based on NOAA 1991-2020 normals from SAN DIEGO MONTGOMERY FLD, CA US.
Year-round temperatures (°F)
Climate summary
San Diego has an annual average temperature of 64.1°F with about 11 inches of precipitation per year. The warmest month is August (average high 82.0°F), and the coldest is December (average low 45.3°F). February is typically the wettest month (2.65 in) and August the driest (0.01 in).
Best time to visit San Diego
Full guide →Climate change signal
All-time records →177 of 366 (48.4%) of San Diego's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 12 | |
| 2000s | 129 | |
| 2010s | 142 | |
| 2020s | 83 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 67.3°F | 46.0°F | 56.6°F | 2.32 in | — | 7 |
| February | 67.3°F | 46.9°F | 57.1°F | 2.65 in | — | 8 |
| March | 68.5°F | 49.6°F | 59.1°F | 1.63 in | — | 7 |
| April | 70.7°F | 52.4°F | 61.5°F | 0.77 in | — | 5 |
| May | 72.1°F | 56.6°F | 64.4°F | 0.28 in | — | 3 |
| June | 74.7°F | 60.0°F | 67.3°F | 0.06 in | — | 1 |
| July | 79.8°F | 64.0°F | 71.9°F | 0.07 in | — | 1 |
| August | 82.0°F | 65.3°F | 73.7°F | 0.01 in | — | 0 |
| September | 81.4°F | 63.6°F | 72.5°F | 0.17 in | — | 1 |
| October | 77.8°F | 57.8°F | 67.8°F | 0.54 in | — | 4 |
| November | 72.7°F | 50.1°F | 61.4°F | 0.91 in | — | 6 |
| December | 67.3°F | 45.3°F | 56.3°F | 1.61 in | — | 7 |
Climate twins of San Diego
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).