Riviera Beach, Florida has a Tropical Rainforest climate (Köppen classification: Af). Average annual temperatures range from 20.5 °C (low) to 28.3 °C (high). Annual precipitation averages 1657.9 Millimeters. Riviera Beach is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.7 °C | 23.4 °C | 93.47 mm |
| February | 15.7 °C | 24.7 °C | 74.68 mm |
| March | 17.1 °C | 25.7 °C | 99.06 mm |
| April | 19.9 °C | 27.8 °C | 96.52 mm |
| May | 22 °C | 29.5 °C | 124.71 mm |
| June | 23.9 °C | 31.3 °C | 232.41 mm |
| July | 24.7 °C | 32.1 °C | 157.99 mm |
| August | 24.8 °C | 32.3 °C | 220.22 mm |
| September | 24.4 °C | 31.3 °C | 212.85 mm |
| October | 22.7 °C | 29.6 °C | 162.81 mm |
| November | 19.1 °C | 26.8 °C | 99.82 mm |
| December | 16.6 °C | 24.9 °C | 83.31 mm |
| Annual | 20.5 °C | 28.3 °C | 1657.85 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 10b : 1.7°C to 4.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Af - Tropical Rainforest |