SeasonMapHiroshima vs Sendai: which is better, month by month
Hiroshima beats Sendai in 6 of 12 months — its lead peaks in January (67 vs 57) — while Sendai wins June, July and September; they are within 3 points in April, May and August.
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.
Hiroshima vs Sendai — all 12 months
| Month | Hiroshima | Sendai | Winner | Gap |
|---|---|---|---|---|
| January | 67Ccold, a little rain, clean air | 57Dcold, a little rain, clean air | Hiroshima | 10 |
| February | 70Bcold, a little rain, clean air | 63Ccold, a little rain, clean air | Hiroshima | 7 |
| March | 74Bcool, rainy | 69Ccold, rainy, reliable snow | Hiroshima | 5 |
| April | 81Anice, rainy | 79Bcool, rainy, muggy air | Tie | 2 |
| May | 86Awarm, rainy, muggy air | 87Anice, rainy, muggy air | Tie | 1 |
| June | 68Chot, soaked, muggy air | 84Awarm, rainy, muggy air | Sendai | 16 |
| July | 53Dsweltering, soaked, clean air | 65Chot, soaked, clean air | Sendai | 12 |
| August | 56Dsweltering, soaked, clean air | 59Dsweltering, soaked, clean air | Tie | 3 |
| September | 63Chot, soaked, clean air | 73Bwarm, soaked, clean air | Sendai | 10 |
| October | 87Awarm, rainy, clean air | 78Bnice, rainy, clean air | Hiroshima | 9 |
| November | 83Anice, a little rain, clean air | 76Bcool, a little rain, clean air | Hiroshima | 7 |
| December | 71Bcold, a little rain, clean air | 64Ccold, a little rain, clean air | Hiroshima | 7 |
A month is a tie when the two are within 3 points. The widest gap is June (68 vs 84). Tap a month for that month's temperature, rain, humidity and air quality side by side.