South Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 66.1 °F (low) to 81.2 °F (high). Annual precipitation averages 57.1 Inches. South Beach is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 53.9 °F | 71.7 °F | 2.76 in. |
| February | 56.0 °F | 73.8 °F | 2.61 in. |
| March | 59.8 °F | 76.2 °F | 3.31 in. |
| April | 64.4 °F | 80.2 °F | 3.08 in. |
| May | 69.4 °F | 83.9 °F | 4.42 in. |
| June | 73.6 °F | 87.3 °F | 7.11 in. |
| July | 74.7 °F | 89.3 °F | 6.1 in. |
| August | 75.3 °F | 88.9 °F | 7.96 in. |
| September | 74.6 °F | 87.4 °F | 8.0 in. |
| October | 70.6 °F | 83.6 °F | 5.83 in. |
| November | 62.8 °F | 78.2 °F | 3.26 in. |
| December | 57.5 °F | 74.0 °F | 2.63 in. |
| Annual | 66.1 °F | 81.2 °F | 57.07 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |