SeasonMapChengdu vs Shanghai: which is better, month by month
Chengdu beats Shanghai in 5 of 12 months — its lead peaks in March (83 vs 73) — while Shanghai wins August and October; they are within 3 points in the other 5 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.
Chengdu vs Shanghai — all 12 months
| Month | Chengdu | Shanghai | Winner | Gap |
|---|---|---|---|---|
| January | 67Ccold, dry, poor air quality | 62Ccold, a little rain, poor air quality | Chengdu | 5 |
| February | 73Bcool, dry, poor air quality | 66Ccold, a little rain, poor air quality | Chengdu | 7 |
| March | 83Anice, dry, poor air quality | 73Bcool, rainy, poor air quality | Chengdu | 10 |
| April | 88Awarm, a little rain, poor air quality | 83Anice, rainy, poor air quality | Chengdu | 5 |
| May | 77Bhot, a little rain, poor air quality | 79Bwarm, rainy, muggy air | Tie | 2 |
| June | 64Csweltering, rainy, poor air quality | 55Dhot, soaked, poor air quality | Chengdu | 9 |
| July | 46Fsweltering, soaked, poor air quality | 48Fsweltering, soaked, poor air quality | Tie | 2 |
| August | 45Fsweltering, soaked, poor air quality | 57Dsweltering, rainy, poor air quality | Shanghai | 12 |
| September | 61Chot, rainy, poor air quality | 61Chot, soaked, muggy air | Tie | 0 |
| October | 79Bnice, a little rain, poor air quality | 84Awarm, a little rain, muggy air | Shanghai | 5 |
| November | 78Bnice, dry, poor air quality | 78Bnice, a little rain, poor air quality | Tie | 0 |
| December | 69Ccool, dry, poor air quality | 68Ccold, a little rain, poor air quality | Tie | 1 |
A month is a tie when the two are within 3 points. The widest gap is August (45 vs 57). Tap a month for that month's temperature, rain, humidity and air quality side by side.