September Weather in Pirai do Sul, Brazil

Last updated: August 22, 2025

In Pirai do Sul, Brazil, the average temperature in September is a pleasant 19°C (66°F). However, temperatures can vary significantly, with a minimum of 7°C (44°F) and a maximum reaching up to 31°C (89°F). During this month, you can expect around 63 mm (2.5 in) of precipitation spread over approximately 6 days, and the average humidity hovers around 58%, offering a comfortable yet refreshing atmosphere.

September Temperature in Pirai do Sul

In September in Pirai do Sul, the average temperature is 19°C (66°F). The maximum can reach 31°C (89°F), while the minimum can be as low as 7°C (44°F). This makes it a great time to visit Pirai do Sul for outdoor activities, though it's wise to pack layers to accommodate the temperature variations.

September Weather in Pirai do Sul: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Pirai do Sul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pirai do Sul, September typically has an average temperature of 19°C (66°F), with highs reaching up to 31°C (89°F) and lows dropping to around 7°C (44°F).

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

September Precipitation in Pirai do Sul

In Pirai do Sul in September, the precipitation amount is 63 mm (2.5 in) spread over a duration of 6 days.

September Precipitation Trends in Pirai do Sul

The chart displays monthly precipitation patterns in Pirai do Sul, 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 Pirai do Sul, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 6 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 Pirai do Sul

In Pirai do Sul in September, humidity is 58%. With an average temperature of 19°C (66°F), this humidity feels like a mild embrace, creating a pleasantly warm atmosphere that's perfect for leisurely strolls and sightseeing adventures.

September Average Humidity in Pirai do Sul

This chart illustrates the average monthly humidity levels in Pirai do Sul, 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 Pirai do Sul is approximately 58%, 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 Pirai do Sul

In Pirai do Sul in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Pirai do Sul.

Maximum UV Index Levels in Pirai do Sul for September

The chart shows the monthly maximum UV Index (UVI) for Pirai do Sul 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 Pirai do Sul typically reaches 12, which falls under the extreme exposure category.

Data source: Pirai do Sul 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 Pirai do Sul Compares to Other Months

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

This table compares monthly weather conditions in Pirai do Sul, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	191 mm (7.5 inches)	85%	extreme
February Weather	21°C (70°F)	135 mm (5.3 inches)	80%	extreme
March Weather	21°C (69°F)	138 mm (5.4 inches)	80%	extreme
April Weather	18°C (65°F)	51 mm (2.0 inches)	77%	extreme
May Weather	16°C (61°F)	74 mm (2.9 inches)	76%	very high
June Weather	15°C (59°F)	110 mm (4.3 inches)	74%	high
July Weather	14°C (58°F)	32 mm (1.3 inches)	66%	high
August Weather	15°C (59°F)	74 mm (2.9 inches)	57%	very high
September Weather	19°C (66°F)	63 mm (2.5 inches)	58%	extreme
October Weather	19°C (66°F)	171 mm (6.7 inches)	60%	extreme
November Weather	19°C (67°F)	116 mm (4.6 inches)	78%	extreme
December Weather	21°C (69°F)	185 mm (7.3 inches)	86%	extreme