SeasonMapBangkok vs Hanoi: which is better, month by month
Hanoi beats Bangkok in 7 of 12 months — its lead peaks in March (73 vs 60) — while Bangkok wins June to August; they are within 3 points in May and September.
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.
Bangkok vs Hanoi — all 12 months
| Month | Bangkok | Hanoi | Winner | Gap |
|---|---|---|---|---|
| January | 73Bsweltering, dry, poor air quality | 79Bnice, a little rain, poor air quality | Hanoi | 6 |
| February | 69Csweltering, dry, poor air quality | 81Anice, a little rain, poor air quality | Hanoi | 12 |
| March | 60Csweltering, a little rain, poor air quality | 73Bwarm, a little rain, poor air quality | Hanoi | 13 |
| April | 51Dsweltering, a little rain, poor air quality | 64Chot, rainy, poor air quality | Hanoi | 13 |
| May | 47Fsweltering, rainy, muggy air | 50Dsweltering, soaked, poor air quality | Tie | 3 |
| June | 58Dsweltering, rainy, muggy air | 40Fsweltering, soaked, poor air quality | Bangkok | 18 |
| July | 56Dsweltering, soaked, clean air | 42Fsweltering, soaked, poor air quality | Bangkok | 14 |
| August | 57Dsweltering, rainy, clean air | 34Fsweltering, soaked, poor air quality | Bangkok | 23 |
| September | 46Fsweltering, soaked, muggy air | 44Fsweltering, soaked, poor air quality | Tie | 2 |
| October | 50Dsweltering, soaked, poor air quality | 58Dhot, soaked, poor air quality | Hanoi | 8 |
| November | 65Csweltering, a little rain, poor air quality | 76Bhot, a little rain, poor air quality | Hanoi | 11 |
| December | 75Bsweltering, dry | 86Anice, dry, poor air quality | Hanoi | 11 |
A month is a tie when the two are within 3 points. The widest gap is August (57 vs 34). Tap a month for that month's temperature, rain, humidity and air quality side by side.