SeasonMapParis vs Rotterdam: which is better, month by month
Paris beats Rotterdam in 5 of 12 months — its lead peaks in September (88 vs 82) — and they are within 3 points in the other 7 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.
Paris vs Rotterdam — all 12 months
| Month | Paris | Rotterdam | Winner | Gap |
|---|---|---|---|---|
| January | 53Dcold, a little rain, clean air | 49Fcold, rainy, clean air | Paris | 4 |
| February | 62Ccold, a little rain, muggy air | 59Dcold, a little rain, clean air | Tie | 3 |
| March | 69Ccool, a little rain, clean air | 68Ccold, a little rain, clean air | Tie | 1 |
| April | 81Acool, a little rain, clean air | 77Bcool, a little rain, clean air | Paris | 4 |
| May | 85Anice, a little rain, clean air | 84Anice, a little rain | Tie | 1 |
| June | 92Swarm, a little rain | 89Anice, a little rain | Tie | 3 |
| July | 89Awarm, a little rain, clean air | 91Snice, a little rain, clean air | Tie | 2 |
| August | 90Swarm, a little rain, clean air | 93Snice, a little rain, clean air | Tie | 3 |
| September | 88Anice, a little rain, clean air | 82Anice, rainy, clean air | Paris | 6 |
| October | 74Bnice, a little rain, clean air | 70Bcool, rainy, clean air | Paris | 4 |
| November | 63Ccold, a little rain, clean air | 57Dcold, rainy, clean air | Paris | 6 |
| December | 55Dcold, a little rain, clean air | 52Dcold, a little rain, clean air | Tie | 3 |
A month is a tie when the two are within 3 points. The widest gap is September (88 vs 82). Tap a month for that month's temperature, rain, humidity and air quality side by side.