SeasonMapAlter do Chão vs Cartagena: which is better, month by month
Alter do Chão and Cartagena split the year 6–6 — Alter do Chão wins June to November, Cartagena wins December to May.
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.
Alter do Chão vs Cartagena — all 12 months
| Month | Alter do Chão | Cartagena | Winner | Gap |
|---|---|---|---|---|
| January | 61Csweltering, soaked, clean air | 91Ssweltering, dry, clean air | Cartagena | 30 |
| February | 59Dsweltering, soaked, clean air | 91Ssweltering, dry, clean air | Cartagena | 32 |
| March | 57Dsweltering, soaked, clean air | 89Asweltering, dry | Cartagena | 32 |
| April | 58Dsweltering, soaked, clean air | 85Asweltering, a little rain, muggy air | Cartagena | 27 |
| May | 65Csweltering, soaked, clean air | 76Bsweltering, soaked, muggy air | Cartagena | 11 |
| June | 80Asweltering, soaked, clean air | 71Bsweltering, soaked, clean air | Alter do Chão | 9 |
| July | 85Asweltering, rainy, clean air | 78Bsweltering, soaked, muggy air | Alter do Chão | 7 |
| August | 88Asweltering, a little rain, clean air | 74Bsweltering, soaked, clean air | Alter do Chão | 14 |
| September | 87Asweltering, a little rain, clean air | 72Bsweltering, soaked, clean air | Alter do Chão | 15 |
| October | 82Asweltering, rainy | 66Csweltering, soaked, clean air | Alter do Chão | 16 |
| November | 77Bsweltering, rainy | 71Bsweltering, soaked, clean air | Alter do Chão | 6 |
| December | 63Csweltering, soaked, muggy air | 88Asweltering, a little rain, clean air | Cartagena | 25 |
A month is a tie when the two are within 3 points. The widest gap is February (59 vs 91). Tap a month for that month's temperature, rain, humidity and air quality side by side.