South Palm Beach, Florida has a Tropical Rainforest climate (Köppen classification: Af). Average annual temperatures range from 69.9 °F (low) to 80.7 °F (high). Annual precipitation averages 61.6 Inches. South Palm Beach is located in USDA Plant Hardiness Zone 11a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 59.7 °F | 73.3 °F | 3.39 in. |
| February | 61.5 °F | 74.9 °F | 2.75 in. |
| March | 64.1 °F | 76.5 °F | 3.53 in. |
| April | 68.8 °F | 79.0 °F | 3.31 in. |
| May | 72.5 °F | 81.9 °F | 4.29 in. |
| June | 75.8 °F | 85.2 °F | 8.91 in. |
| July | 77.2 °F | 87.1 °F | 5.72 in. |
| August | 77.6 °F | 87.5 °F | 7.87 in. |
| September | 76.8 °F | 85.7 °F | 8.47 in. |
| October | 73.7 °F | 83.0 °F | 6.24 in. |
| November | 67.5 °F | 78.9 °F | 4.19 in. |
| December | 63.0 °F | 75.6 °F | 2.92 in. |
| Annual | 69.9 °F | 80.7 °F | 61.59 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 11a : 40°F to 35°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Af - Tropical Rainforest |