Laguna Beach, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 12.6 °C (low) to 21.7 °C (high). Annual precipitation averages 308.9 Millimeters. Laguna Beach is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.2 °C | 19.3 °C | 59.94 mm |
| February | 8.7 °C | 19.2 °C | 79.5 mm |
| March | 9.9 °C | 19.8 °C | 41.4 mm |
| April | 11 °C | 20.2 °C | 19.3 mm |
| May | 13.4 °C | 20.9 °C | 8.38 mm |
| June | 15.4 °C | 22.3 °C | 2.54 mm |
| July | 17.2 °C | 24.1 °C | 2.79 mm |
| August | 17.4 °C | 25.1 °C | 0 mm |
| September | 16.6 °C | 25.1 °C | 4.32 mm |
| October | 14.2 °C | 23.4 °C | 12.19 mm |
| November | 10.7 °C | 21.9 °C | 17.53 mm |
| December | 8.1 °C | 19.2 °C | 60.96 mm |
| Annual | 12.6 °C | 21.7 °C | 308.85 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |