Hillsboro Beach, Florida has a Tropical Rainforest climate (Köppen classification: Af). Average annual temperatures range from 70 °F (low) to 82.4 °F (high). Annual precipitation averages 61.2 Inches. Hillsboro Beach is located in USDA Plant Hardiness Zone 11a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 60.0 °F | 74.6 °F | 2.95 in. |
| February | 61.8 °F | 76.2 °F | 2.72 in. |
| March | 64.7 °F | 78.0 °F | 2.99 in. |
| April | 69.0 °F | 81.4 °F | 3.77 in. |
| May | 72.6 °F | 84.3 °F | 5.24 in. |
| June | 75.7 °F | 87.2 °F | 8.55 in. |
| July | 77.1 °F | 88.8 °F | 6.18 in. |
| August | 77.6 °F | 89.2 °F | 7.41 in. |
| September | 76.7 °F | 87.8 °F | 8.41 in. |
| October | 73.7 °F | 84.8 °F | 6.41 in. |
| November | 67.5 °F | 79.8 °F | 3.91 in. |
| December | 63.6 °F | 76.6 °F | 2.64 in. |
| Annual | 70 °F | 82.4 °F | 61.18 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 |