Laguna Vista, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 19.7 °C (low) to 27.6 °C (high). Annual precipitation averages 690.4 Millimeters. Laguna Vista is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.7 °C | 20.5 °C | 44.7 mm |
| February | 13.6 °C | 22.3 °C | 37.34 mm |
| March | 16.5 °C | 24.7 °C | 32.51 mm |
| April | 19.7 °C | 27.4 °C | 35.05 mm |
| May | 23.1 °C | 30.2 °C | 49.02 mm |
| June | 25.2 °C | 32.4 °C | 61.98 mm |
| July | 25.6 °C | 33 °C | 49.28 mm |
| August | 25.8 °C | 33.6 °C | 37.34 mm |
| September | 24.4 °C | 31.7 °C | 149.1 mm |
| October | 21.4 °C | 29.1 °C | 92.2 mm |
| November | 16.7 °C | 24.9 °C | 59.69 mm |
| December | 12.6 °C | 21.6 °C | 42.16 mm |
| Annual | 19.7 °C | 27.6 °C | 690.37 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 1.7°C to 4.4°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |