SeasonMapBusan vs Jeju: which is better, month by month
Busan beats Jeju in 8 of 12 months — its lead peaks in January (66 vs 50) — while Jeju wins July to September; they are within 3 points in June.
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.
Busan vs Jeju — all 12 months
| Month | Busan | Jeju | Winner | Gap |
|---|---|---|---|---|
| January | 66Ccold, a little rain | 50Dcold, a little rain | Busan | 16 |
| February | 69Ccold, a little rain | 54Dcold, a little rain | Busan | 15 |
| March | 74Bcool, rainy | 64Ccool, rainy | Busan | 10 |
| April | 81Anice, rainy | 71Bnice, rainy, muggy air | Busan | 10 |
| May | 88Anice, rainy, muggy air | 79Bwarm, rainy, muggy air | Busan | 9 |
| June | 77Bwarm, soaked, muggy air | 75Bhot, soaked, muggy air | Tie | 2 |
| July | 61Csweltering, soaked, clean air | 77Bsweltering, soaked, muggy air | Jeju | 16 |
| August | 58Dsweltering, soaked, muggy air | 82Asweltering, rainy, muggy air | Jeju | 24 |
| September | 65Chot, soaked, clean air | 69Chot, soaked, muggy air | Jeju | 4 |
| October | 86Anice, rainy | 78Bnice, rainy, clean air | Busan | 8 |
| November | 82Acool, a little rain, clean air | 68Ccool, rainy, clean air | Busan | 14 |
| December | 70Bcold, dry | 57Dcold, a little rain, clean air | Busan | 13 |
A month is a tie when the two are within 3 points. The widest gap is August (58 vs 82). Tap a month for that month's temperature, rain, humidity and air quality side by side.