SeasonMapBuenos Aires vs Portillo: which is better, month by month
Buenos Aires beats Portillo in 9 of 12 months — its lead peaks in February (79 vs 14) — while Portillo wins June to August.
Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Buenos Aires vs Portillo — all 12 months
| Month | Buenos Aires | Portillo | Winner | Gap |
|---|---|---|---|---|
| January | 79Bhot, a little rain, clean air | 21Fnice, a little rain | Buenos Aires | 58 |
| February | 79Bhot, rainy, clean air | 14Fnice, dry | Buenos Aires | 65 |
| March | 81Awarm, rainy, clean air | 18Fcool, dry, clean air | Buenos Aires | 63 |
| April | 84Anice, rainy, clean air | 46Fcold, a little rain, clean air | Buenos Aires | 38 |
| May | 82Anice, a little rain, clean air | 75Bcold, a little rain, clean air | Buenos Aires | 7 |
| June | 78Bcool, a little rain, clean air | 91Sfreezing, rainy, clean air | Portillo | 13 |
| July | 76Bcool, a little rain, clean air | 86Afreezing, a little rain, clean air | Portillo | 10 |
| August | 82Acool, a little rain, clean air | 88Afreezing, a little rain, clean air | Portillo | 6 |
| September | 86Anice, a little rain, clean air | 79Bcold, a little rain, clean air | Buenos Aires | 7 |
| October | 90Snice, rainy, clean air | 68Ccold, a little rain, reliable snow | Buenos Aires | 22 |
| November | 88Awarm, a little rain, clean air | 48Fcool, a little rain, reliable snow | Buenos Aires | 40 |
| December | 83Ahot, a little rain, clean air | 27Fcool, dry | Buenos Aires | 56 |
A month is a tie when the two are within 3 points. The widest gap is February (79 vs 14). Tap a month for that month's temperature, rain, humidity and air quality side by side.