SeasonMapBuenos Aires vs Ulaanbaatar: which is better, month by month
Buenos Aires beats Ulaanbaatar in 8 of 12 months — its lead peaks in December (83 vs 29) — while Ulaanbaatar wins June to August; they are within 3 points in 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.
Buenos Aires vs Ulaanbaatar — all 12 months
| Month | Buenos Aires | Ulaanbaatar | Winner | Gap |
|---|---|---|---|---|
| January | 79Bhot, a little rain, clean air | 32Ffreezing, dry | Buenos Aires | 47 |
| February | 79Bhot, rainy, clean air | 35Ffreezing, dry | Buenos Aires | 44 |
| March | 81Awarm, rainy, clean air | 53Dfreezing, dry | Buenos Aires | 28 |
| April | 84Anice, rainy, clean air | 70Bcold, dry, clean air | Buenos Aires | 14 |
| May | 82Anice, a little rain, clean air | 81Acool, dry, clean air | Tie | 1 |
| June | 78Bcool, a little rain, clean air | 93Snice, a little rain, clean air | Ulaanbaatar | 15 |
| July | 76Bcool, a little rain, clean air | 90Swarm, a little rain, clean air | Ulaanbaatar | 14 |
| August | 82Acool, a little rain, clean air | 87Anice, a little rain, clean air | Ulaanbaatar | 5 |
| September | 86Anice, a little rain, clean air | 78Bcool, a little rain, clean air | Buenos Aires | 8 |
| October | 90Snice, rainy, clean air | 63Ccold, dry, clean air | Buenos Aires | 27 |
| November | 88Awarm, a little rain, clean air | 40Ffreezing, dry, reliable snow | Buenos Aires | 48 |
| December | 83Ahot, a little rain, clean air | 29Ffreezing, dry, poor air quality | Buenos Aires | 54 |
A month is a tie when the two are within 3 points. The widest gap is December (83 vs 29). Tap a month for that month's temperature, rain, humidity and air quality side by side.