SeasonMapCon Dao vs Ko Samui: which is better, month by month
Ko Samui beats Con Dao in 5 of 12 months — its lead peaks in September (73 vs 58) — while Con Dao wins April; they are within 3 points in the other 6 months.
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.
Con Dao vs Ko Samui — all 12 months
| Month | Con Dao | Ko Samui | Winner | Gap |
|---|---|---|---|---|
| January | 85Ahot, a little rain, muggy air | 84Ahot, rainy, muggy air | Tie | 1 |
| February | 90Shot, dry, muggy air | 88Asweltering, a little rain, muggy air | Tie | 2 |
| March | 92Shot, dry, muggy air | 90Ssweltering, a little rain, muggy air | Tie | 2 |
| April | 88Asweltering, a little rain, clean air | 80Asweltering, rainy, clean air | Con Dao | 8 |
| May | 76Bsweltering, soaked, clean air | 77Bsweltering, rainy, clean air | Tie | 1 |
| June | 73Bsweltering, soaked, clean air | 83Asweltering, a little rain, clean air | Ko Samui | 10 |
| July | 67Csweltering, soaked, clean air | 78Bsweltering, rainy, clean air | Ko Samui | 11 |
| August | 69Chot, soaked, clean air | 82Asweltering, a little rain, clean air | Ko Samui | 13 |
| September | 58Dhot, soaked, clean air | 73Bsweltering, rainy, clean air | Ko Samui | 15 |
| October | 56Dhot, soaked, clean air | 62Csweltering, soaked, clean air | Ko Samui | 6 |
| November | 61Chot, soaked, clean air | 59Dsweltering, soaked, clean air | Tie | 2 |
| December | 71Bhot, soaked, muggy air | 70Bhot, soaked, muggy air | Tie | 1 |
A month is a tie when the two are within 3 points. The widest gap is September (58 vs 73). Tap a month for that month's temperature, rain, humidity and air quality side by side.