September Weather in Rosario de la Frontera, Argentina

Last updated: August 22, 2025

In September, the average temperature in Rosario de la Frontera, Argentina hovers around 17°C (63°F). Expect minimums dipping to -1°C (31°F) and occasional maximums soaring up to 38°C (100°F). This month brings about 18 mm (0.7 in) of precipitation over approximately 5 days, with an average humidity of 57%.

September Temperature in Rosario de la Frontera

In September in Rosario de la Frontera, the average temperature is 17°C (63°F), with maximums reaching up to 38°C (100°F) and minimums dipping as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling to Rosario de la Frontera during this month.

September Weather in Rosario de la Frontera: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rosario de la Frontera, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario de la Frontera, September typically has an average temperature of 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dropping to around -1°C (31°F).

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

September Precipitation in Rosario de la Frontera

In Rosario de la Frontera in September, the precipitation amount is 18 mm (0.7 in) spread over a duration of 5 days.

September Precipitation Trends in Rosario de la Frontera

The chart displays monthly precipitation patterns in Rosario de la Frontera, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Rosario de la Frontera, September typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Rosario de la Frontera

In Rosario de la Frontera in September, humidity is 57%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing yet slightly damp embrace, making it comfortable for traveling while inviting you to explore the serene surroundings without the sweltering heat.

September Average Humidity in Rosario de la Frontera

This chart illustrates the average monthly humidity levels in Rosario de la Frontera, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Rosario de la Frontera is approximately 57%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Rosario de la Frontera

In Rosario de la Frontera in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Rosario de la Frontera.

Maximum UV Index Levels in Rosario de la Frontera for September

The chart shows the monthly maximum UV Index (UVI) for Rosario de la Frontera in September, 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 September, the maximum UV index in Rosario de la Frontera typically reaches 11, which falls under the extreme exposure category.

Data source: Rosario de la Frontera September 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 September Weather in Rosario de la Frontera Compares to Other Months

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

This table compares monthly weather conditions in Rosario de la Frontera, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (73°F)	204 mm (8.0 inches)	84%	extreme
February Weather	21°C (70°F)	211 mm (8.3 inches)	87%	extreme
March Weather	20°C (67°F)	142 mm (5.6 inches)	88%	extreme
April Weather	18°C (64°F)	99 mm (3.9 inches)	85%	extreme
May Weather	14°C (57°F)	41 mm (1.6 inches)	74%	very high
June Weather	11°C (52°F)	18 mm (0.7 inches)	56%	high
July Weather	11°C (52°F)	9 mm (0.4 inches)	47%	high
August Weather	14°C (57°F)	6 mm (0.2 inches)	44%	very high
September Weather	17°C (63°F)	18 mm (0.7 inches)	57%	extreme
October Weather	20°C (68°F)	66 mm (2.6 inches)	55%	extreme
November Weather	21°C (71°F)	104 mm (4.1 inches)	70%	extreme
December Weather	22°C (72°F)	168 mm (6.6 inches)	77%	extreme