SeasonMapCastro vs Santiago: which is better, month by month
Santiago beats Castro in 9 of 12 months — its lead peaks in August (74 vs 56) — while Castro wins February; they are within 3 points in December to January.
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.
Castro vs Santiago — all 12 months
| Month | Castro | Santiago | Winner | Gap |
|---|---|---|---|---|
| January | 90Snice, a little rain, clean air | 89Ahot, dry | Tie | 1 |
| February | 92Snice, a little rain, clean air | 87Ahot, dry, poor air quality | Castro | 5 |
| March | 81Anice, rainy, clean air | 88Ahot, dry, poor air quality | Santiago | 7 |
| April | 69Ccool, rainy, clean air | 86Awarm, a little rain, poor air quality | Santiago | 17 |
| May | 61Ccool, rainy, clean air | 77Bnice, a little rain, poor air quality | Santiago | 16 |
| June | 51Dcold, soaked, clean air | 66Ccool, rainy, poor air quality | Santiago | 15 |
| July | 53Dcold, soaked, clean air | 70Bcool, a little rain, poor air quality | Santiago | 17 |
| August | 56Dcold, soaked, clean air | 74Bnice, a little rain, poor air quality | Santiago | 18 |
| September | 65Ccold, rainy, clean air | 83Anice, a little rain | Santiago | 18 |
| October | 74Bcool, rainy, clean air | 91Swarm, a little rain | Santiago | 17 |
| November | 79Bcool, rainy, clean air | 92Swarm, dry | Santiago | 13 |
| December | 86Anice, a little rain, clean air | 88Ahot, dry | Tie | 2 |
A month is a tie when the two are within 3 points. The widest gap is August (56 vs 74). Tap a month for that month's temperature, rain, humidity and air quality side by side.