SeasonMapKo Samui vs Tioman: which is better, month by month
Ko Samui beats Tioman in 5 of 12 months — its lead peaks in January (84 vs 63) — while Tioman wins July, September and October; they are within 3 points in the other 4 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.
Ko Samui vs Tioman — all 12 months
| Month | Ko Samui | Tioman | Winner | Gap |
|---|---|---|---|---|
| January | 84Ahot, rainy, muggy air | 63Cwarm, soaked, clean air | Ko Samui | 21 |
| February | 88Asweltering, a little rain, muggy air | 83Awarm, rainy, clean air | Ko Samui | 5 |
| March | 90Ssweltering, a little rain, muggy air | 85Awarm, rainy, clean air | Ko Samui | 5 |
| April | 80Asweltering, rainy, clean air | 82Ahot, rainy, clean air | Tie | 2 |
| May | 77Bsweltering, rainy, clean air | 77Bhot, soaked, clean air | Tie | 0 |
| June | 83Asweltering, a little rain, clean air | 79Bwarm, rainy, muggy air | Ko Samui | 4 |
| July | 78Bsweltering, rainy, clean air | 84Awarm, rainy, muggy air | Tioman | 6 |
| August | 82Asweltering, a little rain, clean air | 83Awarm, rainy, clean air | Tie | 1 |
| September | 73Bsweltering, rainy, clean air | 80Awarm, rainy, muggy air | Tioman | 7 |
| October | 62Csweltering, soaked, clean air | 74Bwarm, soaked, muggy air | Tioman | 12 |
| November | 59Dsweltering, soaked, clean air | 60Cwarm, soaked, clean air | Tie | 1 |
| December | 70Bhot, soaked, muggy air | 59Dwarm, soaked, clean air | Ko Samui | 11 |
A month is a tie when the two are within 3 points. The widest gap is January (84 vs 63). Tap a month for that month's temperature, rain, humidity and air quality side by side.