Aarhus vs Helsinki: which is better, month by month

Aarhus beats Helsinki in 8 of 12 months — its lead peaks in January (43 vs 30) — while Helsinki wins July; they are within 3 points in May, June and August.

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.

Aarhus

🇩🇰 Denmark · mild climate

Best month: August 90/100
Months won: 8 of 12

Helsinki

🇫🇮 Finland · mild climate

Best month: July 93/100
Months won: 1 of 12

Aarhus vs Helsinki — all 12 months

Month	Aarhus	Helsinki	Winner	Gap
January	43Fcold, a little rain, clean air	30Ffreezing, a little rain, clean air	Aarhus	13
February	51Dcold, a little rain, clean air	38Ffreezing, a little rain, clean air	Aarhus	13
March	63Ccold, a little rain, clean air	52Dfreezing, a little rain, clean air	Aarhus	11
April	74Bcold, a little rain, clean air	70Bcold, a little rain, muggy air	Aarhus	4
May	81Acool, a little rain, clean air	81Acool, a little rain, clean air	Tie	0
June	88Anice, a little rain, clean air	90Snice, a little rain, clean air	Tie	2
July	87Anice, rainy, clean air	93Snice, a little rain, clean air	Helsinki	6
August	90Snice, a little rain, clean air	87Anice, rainy, clean air	Tie	3
September	82Anice, a little rain, clean air	77Bcool, a little rain, clean air	Aarhus	5
October	67Ccool, a little rain, clean air	61Ccold, a little rain, clean air	Aarhus	6
November	56Dcold, a little rain, clean air	45Fcold, a little rain, clean air	Aarhus	11
December	46Fcold, a little rain, clean air	34Ffreezing, a little rain, clean air	Aarhus	12

A month is a tie when the two are within 3 points. The widest gap is January (43 vs 30). Tap a month for that month's temperature, rain, humidity and air quality side by side.