Copenhagen vs Mariehamn: which is better, month by month

Copenhagen beats Mariehamn in 11 of 12 months — its lead peaks in November (58 vs 34) — and they are within 3 points in July.

Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. 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: 11 of 12

Mariehamn

Åland Islands · mild climate

Best month: July 87/100
Months won: 0 of 12

Copenhagen vs Mariehamn — all 12 months

Month	Copenhagen	Mariehamn	Winner	Gap
January	43Fcold, a little rain, clean air	27Ffreezing, a little rain, clean air	Copenhagen	16
February	51Dcold, a little rain, clean air	37Ffreezing, a little rain, clean air	Copenhagen	14
March	62Ccold, a little rain, clean air	51Dfreezing, a little rain, clean air	Copenhagen	11
April	75Bcold, a little rain, clean air	63Ccold, a little rain, clean air	Copenhagen	12
May	83Acool, a little rain, clean air	76Bcool, dry, clean air	Copenhagen	7
June	92Snice, a little rain, clean air	82Anice, a little rain, clean air	Copenhagen	10
July	89Anice, rainy, clean air	87Anice, a little rain, clean air	Tie	2
August	88Anice, a little rain, clean air	80Anice, a little rain, clean air	Copenhagen	8
September	82Anice, a little rain, clean air	73Bcool, a little rain, clean air	Copenhagen	9
October	68Ccool, a little rain, clean air	49Fcold, rainy, clean air	Copenhagen	19
November	58Dcold, a little rain, clean air	34Fcold, a little rain, clean air	Copenhagen	24
December	47Fcold, a little rain, clean air	24Ffreezing, a little rain, clean air	Copenhagen	23

A month is a tie when the two are within 3 points. The widest gap is November (58 vs 34). Tap a month for that month's temperature, rain, humidity and air quality side by side.