Port Hueneme, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 53 °F (low) to 68.2 °F (high). Annual precipitation averages 14.5 Inches. Port Hueneme is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 47.7 °F | 65.6 °F | 3.15 in. |
| February | 47.6 °F | 64.9 °F | 3.77 in. |
| March | 48.7 °F | 65.4 °F | 2.52 in. |
| April | 49.8 °F | 65.5 °F | 0.7 in. |
| May | 53.2 °F | 66.8 °F | 0.3 in. |
| June | 56.6 °F | 68.3 °F | 0.06 in. |
| July | 59.6 °F | 71.1 °F | 0.02 in. |
| August | 59.8 °F | 71.6 °F | 0.0 in. |
| September | 58.7 °F | 72.4 °F | 0.06 in. |
| October | 55.7 °F | 71.6 °F | 0.45 in. |
| November | 50.8 °F | 69.7 °F | 1.0 in. |
| December | 47.2 °F | 65.3 °F | 2.49 in. |
| Annual | 53 °F | 68.2 °F | 14.52 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 35°F to 30°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |