Estero, Florida has a Tropical Savanna (Wet and Dry Climate) climate (Köppen classification: Aw). Average annual temperatures range from 18.9 °C (low) to 28.8 °C (high). Annual precipitation averages 1485.9 Millimeters. Estero is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.3 °C | 23.4 °C | 54.61 mm |
| February | 13.6 °C | 24.8 °C | 49.78 mm |
| March | 15.4 °C | 26.3 °C | 54.36 mm |
| April | 18.1 °C | 28.7 °C | 76.2 mm |
| May | 20.8 °C | 30.8 °C | 88.9 mm |
| June | 23.1 °C | 32.2 °C | 269.24 mm |
| July | 24 °C | 32.6 °C | 232.66 mm |
| August | 24.1 °C | 32.7 °C | 246.38 mm |
| September | 23.7 °C | 32.1 °C | 221.49 mm |
| October | 21.2 °C | 30 °C | 95.5 mm |
| November | 16.8 °C | 26.9 °C | 46.99 mm |
| December | 14.2 °C | 24.8 °C | 49.78 mm |
| Annual | 18.9 °C | 28.8 °C | 1485.89 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 1.7°C to 4.4°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Aw - Tropical Savanna (Wet and Dry Climate) |