August Weather in Rosario, Uruguay

Last updated: August 28, 2025

In August, the average temperature in Rosario, Uruguay hovers around 12°C (54°F), with a minimum dipping to 0°C (32°F) and a maximum reaching 26°C (80°F). Expect approximately 75 mm (3.0 in) of precipitation spread over 6 days, while the average humidity levels sit at a comfortable 72%.

August Temperature in Rosario

In August in Rosario, the average temperature is 12°C (54°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as 0°C (32°F). It's advisable to pack layers and be prepared for a range of temperatures while exploring the area.

August Weather in Rosario: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Rosario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario, August typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (80°F) and lows dropping to around 0°C (32°F).

Data source: Temperature data for Rosario generated using information from the Copernicus Climate Change Service.

August Precipitation in Rosario

In Rosario in August, the precipitation amount is 75 mm (3.0 in) occurring over a span of 6 days.

August Precipitation Trends in Rosario

The chart displays monthly precipitation patterns in Rosario, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Rosario, August typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Rosario

In Rosario in August, humidity is 72%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making outdoor excursions a bit uncomfortable. You may find yourself reaching for an extra layer as the moisture in the air adds to the coolness, prompting travelers to seek out sheltered spots to enjoy the scenery.

August Average Humidity in Rosario

This chart illustrates the average monthly humidity levels in Rosario, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Rosario is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Rosario

In Rosario in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rosario, you can refer to this Hourly UV Index in Rosario.

Maximum UV Index Levels in Rosario for August

The chart shows the monthly maximum UV Index (UVI) for Rosario in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Rosario typically reaches 6, which falls under the high exposure category.

Data source: Rosario August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Rosario Compares to Other Months

Weather in Rosario varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Rosario, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rosario, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	85 mm (3.4 inches)	63%	extreme
February Weather	23°C (73°F)	110 mm (4.3 inches)	69%	extreme
March Weather	21°C (70°F)	95 mm (3.7 inches)	73%	extreme
April Weather	18°C (65°F)	70 mm (2.8 inches)	79%	high
May Weather	14°C (58°F)	89 mm (3.5 inches)	82%	moderate
June Weather	12°C (54°F)	75 mm (3.0 inches)	80%	moderate
July Weather	11°C (52°F)	86 mm (3.4 inches)	72%	moderate
August Weather	12°C (54°F)	75 mm (3.0 inches)	72%	high
September Weather	14°C (58°F)	76 mm (3.0 inches)	76%	very high
October Weather	17°C (62°F)	91 mm (3.6 inches)	71%	very high
November Weather	20°C (69°F)	67 mm (2.6 inches)	68%	extreme
December Weather	23°C (73°F)	72 mm (2.8 inches)	65%	extreme