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Gualeguaychú Weather and Climate: A Comprehensive Guide

Gualeguaychú experiences great temperature shifts. The city's weather can transition from very warm days to mild weather. It also experiences much rainfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The climate in Gualeguaychú is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a very warm 32°C in January. In July, the coolest month of the year, temperatures drop to a moderate 17°C.

At night, you can expect cooler temperatures, with averages dropping to around 7°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Gualeguaychú has a notably wet climate with abundant precipitation, recording 1270 mm of rainfall per year. Gualeguaychú experiences moderate seasonal variation in rainfall, with monthly averages ranging from 136 mm in April, the wettest month, and 66 mm in July, the driest month.

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

Sunshine over the year

Gualeguaychú can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 9.6 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Mercedes, Uruguay (49 KM, 30 Miles).

Daily hours of sunshine

Data from: Mercedes, Uruguay (49 KM, 30 Miles).

Forecast for Gualeguaychú

Tue   Jan 14
34°C | 18°C
SE 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Wed   Jan 15
37°C | 20°C
NE 4 m/s
clear and no rain

clear and no rain

Thu   Jan 16
38°C | 23°C
NE 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Gualeguaychú in Argentina

During the months of April, May, September and October 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 Gualeguaychú?
    January has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Gualeguaychú?
    The coldest month is July with an average maximum temperature of 17°C.
  • Which is the wettest month in Gualeguaychú?
    April tops the wettest month list with 136 mm of rainfall.
  • Which is the driest month in Gualeguaychú?
    July is the driest month with 66 mm of precipitation.
  • Which is the sunniest month in Gualeguaychú?
    January is the sunniest month with an average of 289 hours of sunshine.

  • 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.