SeasonMapCancún vs Key West: which is better, month by month
Cancún beats Key West in 2 of 12 months — its lead peaks in July (85 vs 80) — while Key West wins June; they are within 3 points in the other 9 months.
Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Cancún vs Key West — all 12 months
| Month | Cancún | Key West | Winner | Gap |
|---|---|---|---|---|
| January | 87Ahot, a little rain, clean air | 84Awarm, a little rain, clean air | Tie | 3 |
| February | 91Shot, a little rain, clean air | 89Awarm, a little rain, clean air | Tie | 2 |
| March | 93Shot, dry | 91Shot, a little rain, clean air | Tie | 2 |
| April | 92Shot, a little rain, clean air | 90Shot, a little rain, clean air | Tie | 2 |
| May | 86Asweltering, rainy, clean air | 85Asweltering, rainy, clean air | Tie | 1 |
| June | 77Bsweltering, soaked, clean air | 82Asweltering, rainy, clean air | Key West | 5 |
| July | 85Asweltering, rainy, muggy air | 80Asweltering, rainy, muggy air | Cancún | 5 |
| August | 80Asweltering, rainy, clean air | 78Bsweltering, rainy, clean air | Tie | 2 |
| September | 78Bsweltering, soaked, clean air | 76Bsweltering, soaked, clean air | Tie | 2 |
| October | 79Bsweltering, soaked, clean air | 81Ahot, rainy, clean air | Tie | 2 |
| November | 86Ahot, rainy, clean air | 86Ahot, a little rain, clean air | Tie | 0 |
| December | 87Ahot, a little rain, clean air | 83Awarm, a little rain, clean air | Cancún | 4 |
A month is a tie when the two are within 3 points. The widest gap is June (77 vs 82). Tap a month for that month's temperature, rain, humidity and air quality side by side.