Hiroshima vs Nagasaki: which is better, month by month

Hiroshima beats Nagasaki in 5 of 12 months — its lead peaks in June (68 vs 57) — 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.

Hiroshima

🇯🇵 Japan · mild climate

Best month: October 87/100
Months won: 5 of 12

Nagasaki

🇯🇵 Japan · mild climate

Best month: October 85/100
Months won: 0 of 12

Hiroshima vs Nagasaki — all 12 months

Month	Hiroshima	Nagasaki	Winner	Gap
January	67Ccold, a little rain, clean air	65Ccold, a little rain, clean air	Tie	2
February	70Bcold, a little rain, clean air	66Ccold, rainy, clean air	Hiroshima	4
March	74Bcool, rainy	72Bcool, soaked	Tie	2
April	81Anice, rainy	80Anice, soaked, muggy air	Tie	1
May	86Awarm, rainy, muggy air	78Bwarm, soaked, muggy air	Hiroshima	8
June	68Chot, soaked, muggy air	57Dhot, soaked, muggy air	Hiroshima	11
July	53Dsweltering, soaked, clean air	49Fsweltering, soaked, clean air	Hiroshima	4
August	56Dsweltering, soaked, clean air	52Dsweltering, soaked, clean air	Hiroshima	4
September	63Chot, soaked, clean air	60Chot, soaked, clean air	Tie	3
October	87Awarm, rainy, clean air	85Awarm, rainy, clean air	Tie	2
November	83Anice, a little rain, clean air	81Anice, rainy, clean air	Tie	2
December	71Bcold, a little rain, clean air	68Ccold, rainy, clean air	Tie	3

A month is a tie when the two are within 3 points. The widest gap is June (68 vs 57). Tap a month for that month's temperature, rain, humidity and air quality side by side.