Copenhagen vs Trondheim: which is better, month by month

Copenhagen beats Trondheim in 10 of 12 months — its lead peaks in November (58 vs 42) — and they are within 3 points in 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.

Copenhagen

🇩🇰 Denmark · mild climate

Best month: June 92/100
Months won: 10 of 12

Trondheim

🇳🇴 Norway · mild climate

Best month: July 92/100
Months won: 0 of 12

Copenhagen vs Trondheim — all 12 months

Month	Copenhagen	Trondheim	Winner	Gap
January	43Fcold, a little rain, clean air	33Ffreezing, rainy, clean air	Copenhagen	10
February	51Dcold, a little rain, clean air	44Ffreezing, a little rain, clean air	Copenhagen	7
March	62Ccold, a little rain, clean air	56Dcold, a little rain, clean air	Copenhagen	6
April	75Bcold, a little rain, clean air	70Bcold, a little rain, clean air	Copenhagen	5
May	83Acool, a little rain, clean air	80Acool, a little rain, clean air	Tie	3
June	92Snice, a little rain, clean air	88Anice, a little rain, clean air	Copenhagen	4
July	89Anice, rainy, clean air	92Snice, a little rain, clean air	Tie	3
August	88Anice, a little rain, clean air	84Anice, rainy, clean air	Copenhagen	4
September	82Anice, a little rain, clean air	75Bcool, rainy, clean air	Copenhagen	7
October	68Ccool, a little rain, clean air	60Ccold, rainy, clean air	Copenhagen	8
November	58Dcold, a little rain, clean air	42Fcold, a little rain, clean air	Copenhagen	16
December	47Fcold, a little rain, clean air	35Ffreezing, rainy, clean air	Copenhagen	12

A month is a tie when the two are within 3 points. The widest gap is November (58 vs 42). Tap a month for that month's temperature, rain, humidity and air quality side by side.