Thermograph

Rosario, Santa Fe, Argentina climate

Average temperatures, precipitation and all-time records for Rosario, Santa Fe, Argentina, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is January, averaging a high of 31°C, and its coldest is July, with an average low of 6°C.

Rosario, officially the Autonomous City of Rosario, is a city in central Argentina, in the south of the province of Santa Fe. Located 300 km (186 mi) northwest of Buenos Aires on the west bank of the Paraná River, it is the country's third-most populous city after Buenos Aires and Córdoba. via Wikipedia

How today compares

Latest recorded day: 2026-10-15. Each reading placed on Rosario, Santa Fe, Argentina's own ±7-day seasonal distribution.

High 21°C Low · 24th pct
Low 12°C Normal · 40th pct
Feels-like 11°C Below Normal · 30th pct
Humidity 11.6 g/m³ Above Normal · 65th pct
Wind 13 km/h Low · 21st pct
Gust* 35 km/h Normal · 47th pct
Precip 2 mm Heavy · 62nd pct

Open Rosario in the live weather grader →

Rosario average temperatures by month

Typical daily high and low, and average precipitation, for each month in Rosario, Santa Fe, Argentina, based on 1980–2026 records. The wettest month is February (5 mm on an average day).

MonthAvg highAvg lowAvg precip
January 31°C 19°C 3 mm
February 29°C 18°C 5 mm
March 27°C 17°C 5 mm
April 23°C 14°C 3 mm
May 19°C 10°C 3 mm
June 16°C 7°C 0 mm
July 16°C 6°C 0 mm
August 18°C 7°C 3 mm
September 21°C 10°C 3 mm
October 24°C 13°C 3 mm
November 27°C 15°C 5 mm
December 29°C 18°C 5 mm

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.

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Record extremes

  • Hottest day on record: 41°C on 2022-01-13
  • Coldest day on record: -6°C on 2024-07-10

All Rosario weather records →

Percentiles compare each day to Rosario, Santa Fe, Argentina's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →