Key West Climate: Weather by Month and Best Time to Visit
Best months for Key West: February, March, April, December.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 23°C | 21°C | 37 mm | 6 | – | – | 8.3 |
| February | 23°C | 21°C | 30 mm | 4 | – | – | 8.6 |
| March | 24°C | 22°C | 26 mm | 4 | – | – | 8.6 |
| April | 25°C | 24°C | 39 mm | 4 | – | – | 8.5 |
| May | 27°C | 25°C | 66 mm | 8 | – | – | 8.1 |
| June | 28°C | 27°C | 105 mm | 13 | – | – | 7.2 |
| July | 29°C | 27°C | 64 mm | 13 | – | – | 7.4 |
| August | 29°C | 27°C | 103 mm | 16 | – | – | 6.8 |
| September | 29°C | 27°C | 138 mm | 18 | – | – | 6.5 |
| October | 27°C | 26°C | 117 mm | 13 | – | – | 7.2 |
| November | 25°C | 24°C | 37 mm | 6 | – | – | 8.3 |
| December | 24°C | 22°C | 32 mm | 5 | – | – | 8.5 |