Winter Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 65.6 °F (low) to 81.6 °F (high). Annual precipitation averages 56.4 Inches. Winter Beach is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 53.5 °F | 72.2 °F | 2.83 in. |
| February | 55.4 °F | 74.1 °F | 2.63 in. |
| March | 59.0 °F | 76.8 °F | 3.27 in. |
| April | 63.9 °F | 80.7 °F | 2.76 in. |
| May | 68.9 °F | 84.4 °F | 3.99 in. |
| June | 73.2 °F | 87.8 °F | 7.22 in. |
| July | 74.3 °F | 89.6 °F | 5.78 in. |
| August | 74.8 °F | 89.3 °F | 8.1 in. |
| September | 74.3 °F | 87.7 °F | 8.5 in. |
| October | 70.2 °F | 83.9 °F | 5.42 in. |
| November | 62.3 °F | 78.4 °F | 3.25 in. |
| December | 56.8 °F | 74.4 °F | 2.63 in. |
| Annual | 65.6 °F | 81.6 °F | 56.38 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |