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Rosario Weather and Climate: A Comprehensive Guide

The temperature in Rosario can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and mild during the cooler months. It also has a relatively rainy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

Visitors to Rosario can expect significant temperature changes throughout the year. On average, daytime temperatures range from a very warm 30°C in January to a moderate 16°C in July.

Nighttime temperatures can drop, with average lows reaching 7°C in July. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Rosario is known for its substantial rainfall, with annual precipitation reaching 1141 mm. The wettest period in Rosario occurs in February, which receives around 123 mm of precipitation. During the driest month, July, Rosario experiences moderate rainfall, totaling approximately 76 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Rosario

Mon   Jan 13
33°C | 17°C
NE 4 m/s
clear and no rain

clear and no rain

Tue   Jan 14
34°C | 18°C
NE 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Wed   Jan 15
36°C | 20°C
SE 4 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Rosario in Uruguay

During the months of April, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Rosario?
    January has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Rosario?
    The coldest month is July with an average maximum temperature of 16°C.
  • Which is the wettest month in Rosario?
    February tops the wettest month list with 123 mm of rainfall.
  • Which is the driest month in Rosario?
    July is the driest month with 76 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.