Santa Monica, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 56.4 °F (low) to 67.9 °F (high). Annual precipitation averages 14.4 Inches. Santa Monica is located in USDA Plant Hardiness Zone 11a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 50.1 °F | 65.2 °F | 3.34 in. |
| February | 50.5 °F | 64.7 °F | 3.91 in. |
| March | 52.1 °F | 64.9 °F | 2.39 in. |
| April | 53.8 °F | 64.5 °F | 0.66 in. |
| May | 57.1 °F | 65.7 °F | 0.27 in. |
| June | 60.2 °F | 68.1 °F | 0.06 in. |
| July | 63.0 °F | 70.8 °F | 0.05 in. |
| August | 63.6 °F | 72.3 °F | 0.02 in. |
| September | 62.8 °F | 72.3 °F | 0.12 in. |
| October | 59.5 °F | 71.1 °F | 0.54 in. |
| November | 54.0 °F | 69.4 °F | 0.74 in. |
| December | 49.8 °F | 65.2 °F | 2.32 in. |
| Annual | 56.4 °F | 67.9 °F | 14.42 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 11a : 40°F to 35°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |