Indialantic, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 19.1 °C (low) to 26.7 °C (high). Annual precipitation averages 1372.9 Millimeters. Indialantic is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.2 °C | 21 °C | 70.36 mm |
| February | 13.5 °C | 22.1 °C | 64.26 mm |
| March | 15.6 °C | 23.7 °C | 75.44 mm |
| April | 18.4 °C | 26.1 °C | 67.06 mm |
| May | 21.2 °C | 28.4 °C | 94.74 mm |
| June | 23.3 °C | 30.3 °C | 183.13 mm |
| July | 23.8 °C | 31.4 °C | 162.31 mm |
| August | 24.3 °C | 31.3 °C | 187.45 mm |
| September | 23.9 °C | 30.6 °C | 199.39 mm |
| October | 21.8 °C | 28.2 °C | 133.1 mm |
| November | 17.4 °C | 25.1 °C | 69.85 mm |
| December | 14.2 °C | 22.4 °C | 65.79 mm |
| Annual | 19.1 °C | 26.7 °C | 1372.88 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 |