Rosario Weather in August
Rosario in August sees pleasant temperatures, with highs around 18°C (64°F) and overnight lows of 8°C (46°F). Rainfall is fairly high at around 86 mm (3.4 in) on average, so pack waterproofs just in case.
Rainfall in Rosario in August
You can expect rain on roughly 8 days based on historical data, averaging 86 mm (3.4 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Rosario in August
In August, expect pleasant temperatures in Rosario, with highs of 18°C (64°F) and lows of 8°C (46°F) at night. The winter season takes place during August. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.If you prefer dry days with pleasant temperatures, May, September and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Rosario's climate page.
Rosario Temperature in August
Min Temperature
8°C (46°F)
Max Temperature
18°C (64°F)
Chance of Rain
27%
Precipitation
86 mm (3.4 in)
Rainy days
8 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Rosario typically stay consistent throughout August, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 10°C (50°F).
Average temperatures in August
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Rosario in August
Browse day-by-day weather records for Rosario spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rosario historical weather extremes in August
According to our 44 years of weather records for Rosario, the following extremes were recorded between 1981 and 2025.
- The hottest August day on record in Rosario reached 32°C (90°F) (August 26, 2002).
- The coldest August day was on August 1, 1991, with a maximum of 7°C (45°F).
- Rosario registered its coldest August night on August 22, 2011, with temperatures dropping to -2°C (28°F).
Best Places in Uruguay in August
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Rosario in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Rosario in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Rosario's climate page.
See the full Rosario climate overview or explore weather in Uruguay.
