Osaka vs Sapporo: which is better, month by month

Osaka beats Sapporo in 7 of 12 months — its lead peaks in December (73 vs 42) — while Sapporo wins June to September; they are within 3 points in May.

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.

Osaka

🇯🇵 Japan · mild climate

Best month: November 84/100
Months won: 7 of 12

Sapporo

🇯🇵 Japan · continental climate

Best month: June 89/100
Months won: 4 of 12

Osaka vs Sapporo — all 12 months

Month	Osaka	Sapporo	Winner	Gap
January	69Ccold, a little rain	40Ffreezing, a little rain, clean air	Osaka	29
February	71Bcold, a little rain	45Ffreezing, a little rain, clean air	Osaka	26
March	75Bcool, rainy	57Dcold, a little rain, muggy air	Osaka	18
April	83Anice, rainy	74Bcool, rainy, muggy air	Osaka	9
May	82Awarm, soaked	84Anice, rainy, clean air	Tie	2
June	66Chot, soaked, muggy air	89Anice, rainy, clean air	Sapporo	23
July	51Dsweltering, soaked, muggy air	79Bhot, rainy, clean air	Sapporo	28
August	53Dsweltering, soaked, muggy air	67Chot, soaked, clean air	Sapporo	14
September	61Csweltering, soaked, muggy air	86Awarm, rainy, clean air	Sapporo	25
October	80Awarm, soaked, muggy air	73Bcool, rainy, clean air	Osaka	7
November	84Anice, a little rain, muggy air	59Dcold, rainy, clean air	Osaka	25
December	73Bcool, a little rain, muggy air	42Ffreezing, a little rain, clean air	Osaka	31

A month is a tie when the two are within 3 points. The widest gap is December (73 vs 42). Tap a month for that month's temperature, rain, humidity and air quality side by side.