Del Rey Oaks, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 48.1 °F (low) to 64.5 °F (high). Annual precipitation averages 17.1 Inches. Del Rey Oaks is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.8 °F | 60.2 °F | 3.61 in. |
| February | 43.9 °F | 60.7 °F | 3.49 in. |
| March | 45.0 °F | 61.6 °F | 2.66 in. |
| April | 46.1 °F | 62.5 °F | 1.26 in. |
| May | 49.1 °F | 64.3 °F | 0.48 in. |
| June | 51.5 °F | 65.9 °F | 0.11 in. |
| July | 53.7 °F | 66.9 °F | 0.04 in. |
| August | 54.4 °F | 68.0 °F | 0.03 in. |
| September | 53.3 °F | 69.7 °F | 0.07 in. |
| October | 50.0 °F | 69.2 °F | 0.71 in. |
| November | 45.6 °F | 64.5 °F | 1.59 in. |
| December | 42.2 °F | 60.1 °F | 3.08 in. |
| Annual | 48.1 °F | 64.5 °F | 17.13 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |