SeasonMapHiroshima vs Nagano: which is better, month by month
Hiroshima beats Nagano in 6 of 12 months — its lead peaks in January (67 vs 47) — while Nagano wins June, August and September; they are within 3 points in April, May and July.
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 Nagano — all 12 months
| Month | Hiroshima | Nagano | Winner | Gap |
|---|---|---|---|---|
| January | 67Ccold, a little rain, clean air | 47Fcold, rainy, clean air | Hiroshima | 20 |
| February | 70Bcold, a little rain, clean air | 55Dcold, rainy, clean air | Hiroshima | 15 |
| March | 74Bcool, rainy | 66Ccold, rainy, muggy air | Hiroshima | 8 |
| April | 81Anice, rainy | 78Bnice, rainy, muggy air | Tie | 3 |
| May | 86Awarm, rainy, muggy air | 86Awarm, rainy, clean air | Tie | 0 |
| June | 68Chot, soaked, muggy air | 79Bhot, soaked, muggy air | Nagano | 11 |
| July | 53Dsweltering, soaked, clean air | 56Dsweltering, soaked, clean air | Tie | 3 |
| August | 56Dsweltering, soaked, clean air | 60Csweltering, soaked, clean air | Nagano | 4 |
| September | 63Chot, soaked, clean air | 71Bhot, soaked, clean air | Nagano | 8 |
| October | 87Awarm, rainy, clean air | 75Bnice, soaked, clean air | Hiroshima | 12 |
| November | 83Anice, a little rain, clean air | 70Bcool, rainy, clean air | Hiroshima | 13 |
| December | 71Bcold, a little rain, clean air | 53Dcold, soaked, clean air | Hiroshima | 18 |
A month is a tie when the two are within 3 points. The widest gap is January (67 vs 47). Tap a month for that month's temperature, rain, humidity and air quality side by side.