September Weather in Rio Brilhante, Brazil

Last updated: August 22, 2025

In September, the average temperature in Rio Brilhante, Brazil hovers around 26°C (79°F), making it a pleasant time to visit. However, be prepared for a range of temperatures, with a minimum of 9°C (49°F) and a scorching maximum of 41°C (107°F). Expect some rainfall too, with 38 mm (1.5 in) of precipitation spread over 4 days. The average humidity sits at a comfortable 28%, ensuring you can enjoy the local attractions without feeling weighed down.

September Temperature in Rio Brilhante

In September in Rio Brilhante, the average temperature is 26°C (79°F). Maximum temperatures can reach 41°C (107°F), while minimums can drop as low as 9°C (49°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

September Weather in Rio Brilhante: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rio Brilhante, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Brilhante, September typically has an average temperature of 26°C (79°F), with highs reaching up to 41°C (107°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Rio Brilhante

In Rio Brilhante in September, the total precipitation amount is 38 mm (1.5 in) spread over the course of 4 days.

September Precipitation Trends in Rio Brilhante

The chart displays monthly precipitation patterns in Rio Brilhante, 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 Rio Brilhante, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Rio Brilhante

In Rio Brilhante in September, humidity is 28%. With an average temperature of 26°C (79°F), this humidity feels like a comfortable embrace, making it perfect for leisurely strolls and outdoor adventures.

September Average Humidity in Rio Brilhante

This chart illustrates the average monthly humidity levels in Rio Brilhante, 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 Rio Brilhante is approximately 28%, 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 Rio Brilhante

In Rio Brilhante 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 Rio Brilhante.

Maximum UV Index Levels in Rio Brilhante for September

The chart shows the monthly maximum UV Index (UVI) for Rio Brilhante 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 Rio Brilhante typically reaches 11, which falls under the extreme exposure category.

Data source: Rio Brilhante 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 Rio Brilhante Compares to Other Months

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

This table compares monthly weather conditions in Rio Brilhante, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	144 mm (5.7 inches)	87%	extreme
February Weather	26°C (80°F)	127 mm (5.0 inches)	85%	extreme
March Weather	27°C (80°F)	117 mm (4.6 inches)	85%	extreme
April Weather	24°C (76°F)	64 mm (2.5 inches)	75%	extreme
May Weather	22°C (71°F)	62 mm (2.4 inches)	52%	very high
June Weather	21°C (69°F)	47 mm (1.9 inches)	40%	high
July Weather	20°C (68°F)	13 mm (0.5 inches)	34%	very high
August Weather	22°C (72°F)	72 mm (2.8 inches)	30%	very high
September Weather	26°C (79°F)	38 mm (1.5 inches)	28%	extreme
October Weather	26°C (80°F)	133 mm (5.2 inches)	29%	extreme
November Weather	26°C (80°F)	117 mm (4.6 inches)	62%	extreme
December Weather	27°C (81°F)	150 mm (5.9 inches)	81%	extreme