Rosario weather in October

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 high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Rainfall | 58 mm / 2.3 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 56% | 🍃 comfortable |
| Dew point | 9°C / 47°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.9 h | |
| Wind | 19 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.
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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.