Buenos Aires vs Rosario: which is better, month by month

Buenos Aires and Rosario split the year 1–1 — Buenos Aires wins January, Rosario wins September, and they are within 3 points in the other 10 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.

Buenos Aires

🇦🇷 Argentina · mild climate

Best month: October 90/100
Months won: 1 of 12

Rosario

🇦🇷 Argentina · mild climate

Best month: September 91/100
Months won: 1 of 12

Buenos Aires vs Rosario — all 12 months

Month	Buenos Aires	Rosario	Winner	Gap
January	79Bhot, a little rain, clean air	75Bsweltering, rainy, clean air	Buenos Aires	4
February	79Bhot, rainy, clean air	77Bsweltering, rainy, clean air	Tie	2
March	81Awarm, rainy, clean air	81Ahot, rainy, clean air	Tie	0
April	84Anice, rainy, clean air	84Awarm, rainy, clean air	Tie	0
May	82Anice, a little rain, clean air	83Anice, a little rain, clean air	Tie	1
June	78Bcool, a little rain, clean air	81Anice, dry, clean air	Tie	3
July	76Bcool, a little rain, clean air	79Bnice, a little rain, clean air	Tie	3
August	82Acool, a little rain, clean air	85Anice, a little rain, clean air	Tie	3
September	86Anice, a little rain, clean air	91Snice, a little rain, clean air	Rosario	5
October	90Snice, rainy, clean air	91Swarm, a little rain, clean air	Tie	1
November	88Awarm, a little rain, clean air	86Ahot, rainy, clean air	Tie	2
December	83Ahot, a little rain, clean air	81Ahot, a little rain, clean air	Tie	2

A month is a tie when the two are within 3 points. The widest gap is September (86 vs 91). Tap a month for that month's temperature, rain, humidity and air quality side by side.