The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Colonia Rosario Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Colonia Rosario.
–
Climate overview of Colonia Rosario
Temperatures in Colonia Rosario, Colonia, Uruguay, vary greatly throughout the year. January is the hottest month at 30°C (86°F), while July is the coldest at 16°C (61°F).
The city has a wet climate, receiving around 1128 mm (44 in) of rainfall per year. Despite the high annual total, it has warm summers and mild winters. February is the wettest month.
Colonia Rosario Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Colonia Rosario - and find the best time to visit.
Monthly Temperature in Colonia Rosario
The climate in Colonia Rosario is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 30°C (86°F) in January to a moderate 16°C (61°F) in July.
Nighttime temperatures range from 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
Rainfall in Colonia Rosario
Colonia Rosario has a notably wet climate with abundant precipitation, recording 1128 mm (44 in) of rainfall per year. The wettest period in Colonia Rosario occurs in February, which receives around 119 mm (4.7 in) of precipitation. During the driest month, May, Colonia Rosario experiences moderate rainfall, totaling 77 mm (3 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Colonia Rosario Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Colonia Rosario
For comfortable weather, consider visiting Colonia Rosario in December. Conditions are usually least favourable in January, June and July.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
good
Feb
very good
Mar
very good
Apr
very good
May
very good
Jun
good
Jul
good
Aug
very good
Sep
very good
Oct
very good
Nov
very good
Dec
excellent
- Best overall: December
- Warmest weather: January and February
- Seasonal pattern: Warm summers and mild winters
Frequently asked questions about the climate in Colonia Rosario
What is the best time to visit Colonia Rosario?
December typically offers the most optimal weather in Colonia Rosario. In contrast, January, June and July tend to have less optimal conditions. Colonia Rosario has warm summers and mild winters.
What temperatures can I expect in Colonia Rosario?
Daytime highs range from 16°C (61°F) in July to 30°C (86°F) in January. Nighttime lows range from 7°C (45°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Colonia Rosario get?
Annual rainfall is around 1128 mm (44 in). February is the wettest month with 119 mm (4.7 in), while May is the driest with 77 mm (3 in).
Colonia Rosario 3-Day Forecast
Colonia Rosario on the map
Colonia Rosario is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Colonia del Sacramento
18°C (64°F) Montevideo18°C (64°F) La Pedrera17°C (63°F) José Ignacio
17°C (63°F) Piriápolis17°C (63°F) La Paloma16°C (61°F) Punta Del Diablo17°C (63°F) Punta del Este16°C (61°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
Carmelo is the best kept secret of Uruguay
With its natural beauty and history, Carmelo is an inviting place to visit. Enjoy nature, tranquility, authenticity, the 'wine' and activities such as cycling, walking and horse riding.
Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
The 5 most tranquil retreats in the Amazon Rainforest, Brazil
Discover top sustainable lodges in the Amazon. Enjoy unique wildlife, eco-friendly stays, and immersive experiences at Anavilhanas, Cristalino, and more.