Holmes Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 67.8 °F (low) to 78.9 °F (high). Annual precipitation averages 59.8 Inches. Holmes Beach is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 54.5 °F | 68.1 °F | 3.39 in. |
| February | 57.5 °F | 69.7 °F | 2.69 in. |
| March | 61.3 °F | 73.1 °F | 3.44 in. |
| April | 66.4 °F | 77.7 °F | 2.84 in. |
| May | 72.1 °F | 82.8 °F | 3.01 in. |
| June | 76.6 °F | 86.1 °F | 7.99 in. |
| July | 77.6 °F | 87.6 °F | 9.03 in. |
| August | 77.6 °F | 88.1 °F | 10.43 in. |
| September | 76.4 °F | 86.8 °F | 8.43 in. |
| October | 71.7 °F | 82.0 °F | 3.55 in. |
| November | 63.6 °F | 74.9 °F | 2.05 in. |
| December | 57.7 °F | 70.4 °F | 2.91 in. |
| Annual | 67.8 °F | 78.9 °F | 59.76 in. |
| Average First Frost Date | No Frost |
| 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |