SeasonMapKo Samui vs Langkawi: which is better, month by month
Ko Samui beats Langkawi in 6 of 12 months — its lead peaks in August (82 vs 71) — while Langkawi wins December to January; 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 Langkawi — all 12 months
| Month | Ko Samui | Langkawi | Winner | Gap |
|---|---|---|---|---|
| January | 84Ahot, rainy, muggy air | 88Asweltering, a little rain, clean air | Langkawi | 4 |
| February | 88Asweltering, a little rain, muggy air | 89Asweltering, a little rain, clean air | Tie | 1 |
| March | 90Ssweltering, a little rain, muggy air | 86Asweltering, a little rain, clean air | Ko Samui | 4 |
| April | 80Asweltering, rainy, clean air | 76Bsweltering, soaked, clean air | Ko Samui | 4 |
| May | 77Bsweltering, rainy, clean air | 69Csweltering, soaked, clean air | Ko Samui | 8 |
| June | 83Asweltering, a little rain, clean air | 78Bsweltering, soaked, clean air | Ko Samui | 5 |
| July | 78Bsweltering, rainy, clean air | 80Asweltering, rainy, muggy air | Tie | 2 |
| August | 82Asweltering, a little rain, clean air | 71Bsweltering, soaked, clean air | Ko Samui | 11 |
| September | 73Bsweltering, rainy, clean air | 67Csweltering, soaked, clean air | Ko Samui | 6 |
| October | 62Csweltering, soaked, clean air | 65Csweltering, soaked, clean air | Tie | 3 |
| November | 59Dsweltering, soaked, clean air | 58Dsweltering, soaked, clean air | Tie | 1 |
| December | 70Bhot, soaked, muggy air | 77Bsweltering, rainy, clean air | Langkawi | 7 |
A month is a tie when the two are within 3 points. The widest gap is August (82 vs 71). Tap a month for that month's temperature, rain, humidity and air quality side by side.