Rosario weather in October

Rosario, Argentina
Photo: Falk2 · CC BY-SA 4.0

October in Rosario: warm, a little rain, with clean air — one of the best months to visit.

#1 of 12 months in Rosario · #15 of 897 destinations to visit in October · comfort 95/100 (tier S)

Updated June 2026 · climate normals from ERA5 reanalysis

Traveller notes on Rosario in October

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Rosario climate normals — October

Daytime high25°C / 76°F🌤 warm
Nighttime low13°C / 56°F
Rainfall58 mm / 2.3 in🌦 some rain
Rainy days8 days
Humidity56%🍃 comfortable
Dew point9°C / 47°F
Sunshine9.9 h/day
Daylight12.9 h
Wind19 km/h / 12 mph
Air quality (US AQI)30🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Where is Rosario?

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Rosario in October — FAQ

Is October a good time to visit Rosario?
October in Rosario: warm, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Rosario on SeasonMap's comfort score (95/100).
What is the weather like in Rosario in October?
In October, Rosario averages a daily high of 24.6°C and a low of 13.2°C, with about 57.6 mm of rain over roughly 7.8 rainy days.
What is the air quality in Rosario in October?
Rosario has a mean US Air Quality Index of about 30 in October.

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