Montevideo vs Rosario: which is better, month by month

Rosario beats Montevideo in 6 of 12 months — its lead peaks in September (91 vs 82) — while Montevideo wins November to March; they are within 3 points in April.

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.

Montevideo

🇺🇾 Uruguay · mild climate

Best month: November 92/100
Months won: 5 of 12

Rosario

🇦🇷 Argentina · mild climate

Best month: September 91/100
Months won: 6 of 12

Montevideo vs Rosario — all 12 months

Month	Montevideo	Rosario	Winner	Gap
January	83Ahot, a little rain, clean air	75Bsweltering, rainy, clean air	Montevideo	8
February	81Ahot, rainy, clean air	77Bsweltering, rainy, clean air	Montevideo	4
March	86Awarm, rainy, clean air	81Ahot, rainy, clean air	Montevideo	5
April	84Anice, rainy, clean air	84Awarm, rainy, clean air	Tie	0
May	78Bnice, rainy, clean air	83Anice, a little rain, clean air	Rosario	5
June	75Bcool, a little rain, clean air	81Anice, dry, clean air	Rosario	6
July	72Bcool, rainy, clean air	79Bnice, a little rain, clean air	Rosario	7
August	77Bcool, a little rain, clean air	85Anice, a little rain, clean air	Rosario	8
September	82Anice, a little rain, clean air	91Snice, a little rain, clean air	Rosario	9
October	87Anice, rainy, clean air	91Swarm, a little rain, clean air	Rosario	4
November	92Swarm, a little rain, clean air	86Ahot, rainy, clean air	Montevideo	6
December	88Awarm, a little rain, clean air	81Ahot, a little rain, clean air	Montevideo	7

A month is a tie when the two are within 3 points. The widest gap is September (82 vs 91). Tap a month for that month's temperature, rain, humidity and air quality side by side.