Gualeguaychú Weather & Climate: Best Time to Visit

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 (90°F) in January. In July, the coolest month of the year, temperatures drop to a moderate 17°C (63°F).

At night, temperatures range from around 19°C (66°F) in January to 7°C (45°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Gualeguaychú has a notably wet climate with abundant precipitation, recording 1270 mm (50 in) of rainfall per year. Gualeguaychú experiences moderate seasonal variation in rainfall, with monthly averages ranging from 136 mm (5.4 in) in April, the wettest month, and 66 mm (2.6 in) in July, the driest month. For more details, please visit our Gualeguaychú Precipitation page.

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

The average number of days each month with precipitation

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

Daily hours of sunshine

The relative humidity is high throughout the year in Gualeguaychú.

The city experiences its highest humidity in June, reaching 80%. In December, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year