Rosario Weather in August
August is one of the perfect months to visit Rosario, with daytime temperatures of 20°C (68°F) and lows of 8°C (46°F) at night. Some rainfall is typical for this time of year.
Rainfall in Rosario in August
Typically, about 5 days will experience rainfall, with an average of 54 mm (2.1 in) for the month. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Rosario in August
August in Rosario is generally perfect, with days reaching 20°C (68°F) and nights settling around 8°C (46°F). August is known for being in the winter season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Rosario in August
The area enjoys a balanced 178 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Rosario in August
August sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.If your ideal day consists of dry skies and pleasant temperatures, May, August and September typically offer the best circumstances for Rosario.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Rosario's climate page.
Rosario Temperature in August
Min Temperature
8°C (46°F)
Max Temperature
20°C (68°F)
Chance of Rain
16%
Precipitation
54 mm (2.1 in)
Rainy days
5 days
Humidity
77%
Windspeed
4 m/s (8 knots)
Sunshine
178 hours
Percentage Sunshine
58%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Rosario typically stay consistent throughout August, with daily highs averaging around 20°C (68°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 8°C (46°F).
Average temperatures in August
Daily Historical Precipitation
50-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
Our historical data for Rosario spans 1976 to 2025, revealing these weather extremes.
- Rosario recorded its highest August temperature of 35°C (95°F) on August 30, 2009.
- 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 4, 1995, with temperatures dropping to -7°C (19°F).
Best Places in Argentina in August
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in August →
perfect weather
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tolerable
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What to Wear in Rosario in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat 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 Argentina, check out our Rosario's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Rosario climate overview or explore weather in Argentina.
