Weather by month
Key West
Florida
Ringed by water on every side, Key West trades Florida's temperature swings for a steady salt-soaked warmth that mostly changes in how wet it gets.
The best time to come
February through April is the island at its best: the driest weeks of the year, warm enough to swim, breezy enough to walk everywhere. If you want the same warmth for less money, November is the one to book.
The year at a glance
| Month | Highs / lows | Temperature range | Wet days | Water |
|---|---|---|---|---|
| January | 76° / 66° | 3 | 72° | |
| February ● | 77° / 67° | 2 | 75° | |
| March ● | 80° / 69° | 3 | 78° | |
| April ● | 83° / 73° | 3 | 80° | |
| May | 86° / 76° | 4 | 85° | |
| June | 89° / 79° | 6 | 87° | |
| July | 90° / 81° | 7 | 89° | |
| August | 91° / 81° | 9 | 89° | |
| September | 89° / 79° | 10 | 88° | |
| October | 86° / 77° | 8 | 83° | |
| November | 81° / 72° | 3 | 78° | |
| December | 78° / 68° | 3 | 74° |
Key West facts
- Sits at about 0 ft above sea level.
- 40.4 in of rain in a typical year, with September the wettest month.
- August runs hottest (91° afternoons); January nights are the coldest (66°).