Indian Harbour Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 19.3 °C (low) to 26.7 °C (high). Annual precipitation averages 1338.1 Millimeters. Indian Harbour Beach is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.3 °C | 21 °C | 70.87 mm |
| February | 13.6 °C | 22.1 °C | 63.75 mm |
| March | 15.7 °C | 23.7 °C | 75.95 mm |
| April | 18.5 °C | 26.1 °C | 68.83 mm |
| May | 21.3 °C | 28.4 °C | 93.73 mm |
| June | 23.5 °C | 30.3 °C | 170.18 mm |
| July | 24 °C | 31.4 °C | 151.38 mm |
| August | 24.4 °C | 31.3 °C | 179.07 mm |
| September | 24.1 °C | 30.6 °C | 198.63 mm |
| October | 21.9 °C | 28.3 °C | 134.11 mm |
| November | 17.5 °C | 25 °C | 67.31 mm |
| December | 14.2 °C | 22.4 °C | 64.26 mm |
| Annual | 19.3 °C | 26.7 °C | 1338.07 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |