SeasonMapBangkok vs Ko Samui: which is better, month by month
Ko Samui beats Bangkok in 10 of 12 months — its lead peaks in March (90 vs 60) — while Bangkok wins November to December.
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.
Bangkok vs Ko Samui — all 12 months
| Month | Bangkok | Ko Samui | Winner | Gap |
|---|---|---|---|---|
| January | 73Bsweltering, dry, poor air quality | 84Ahot, rainy, muggy air | Ko Samui | 11 |
| February | 69Csweltering, dry, poor air quality | 88Asweltering, a little rain, muggy air | Ko Samui | 19 |
| March | 60Csweltering, a little rain, poor air quality | 90Ssweltering, a little rain, muggy air | Ko Samui | 30 |
| April | 51Dsweltering, a little rain, poor air quality | 80Asweltering, rainy, clean air | Ko Samui | 29 |
| May | 47Fsweltering, rainy, muggy air | 77Bsweltering, rainy, clean air | Ko Samui | 30 |
| June | 58Dsweltering, rainy, muggy air | 83Asweltering, a little rain, clean air | Ko Samui | 25 |
| July | 56Dsweltering, soaked, clean air | 78Bsweltering, rainy, clean air | Ko Samui | 22 |
| August | 57Dsweltering, rainy, clean air | 82Asweltering, a little rain, clean air | Ko Samui | 25 |
| September | 46Fsweltering, soaked, muggy air | 73Bsweltering, rainy, clean air | Ko Samui | 27 |
| October | 50Dsweltering, soaked, poor air quality | 62Csweltering, soaked, clean air | Ko Samui | 12 |
| November | 65Csweltering, a little rain, poor air quality | 59Dsweltering, soaked, clean air | Bangkok | 6 |
| December | 75Bsweltering, dry | 70Bhot, soaked, muggy air | Bangkok | 5 |
A month is a tie when the two are within 3 points. The widest gap is March (60 vs 90). Tap a month for that month's temperature, rain, humidity and air quality side by side.