September Weather in Cacoal, Brazil

Last updated: August 22, 2025

In Cacoal, Brazil, the average temperature for September hovers around 28°C (82°F). Expect a minimum of 17°C (63°F) and a scorching maximum of 38°C (100°F). With an average precipitation of 52 mm (2.0 in) spread over 9 days, it’s a warm month, complemented by a low humidity level of just 24%.

September Temperature in Cacoal

In September in Cacoal, the average temperature is 28°C (82°F). Maximums can reach 38°C (100°F) and minimums can be as low as 17°C (63°F). This weather makes it an excellent time for travelers to enjoy outdoor activities and explore the area comfortably.

September Weather in Cacoal: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cacoal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cacoal, September typically has an average temperature of 28°C (82°F), with highs reaching up to 38°C (100°F) and lows dropping to around 17°C (63°F).

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

September Precipitation in Cacoal

In Cacoal in September, the precipitation amount is 52 mm (2.0 in) over a span of 9 days.

September Precipitation Trends in Cacoal

The chart displays monthly precipitation patterns in Cacoal, 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 Cacoal, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 9 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 Cacoal

In Cacoal in September, humidity is 24%. With an average temperature of 28°C (82°F), this humidity feels like a comfortable, warm embrace, making it ideal for leisurely strolls and outdoor adventures.

September Average Humidity in Cacoal

This chart illustrates the average monthly humidity levels in Cacoal, 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 Cacoal is approximately 24%, 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 Cacoal

In Cacoal 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 Cacoal.

Maximum UV Index Levels in Cacoal for September

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

Data source: Cacoal 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 Cacoal Compares to Other Months

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

This table compares monthly weather conditions in Cacoal, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	222 mm (8.7 inches)	88%	extreme
February Weather	25°C (78°F)	330 mm (13.0 inches)	87%	extreme
March Weather	25°C (78°F)	279 mm (11.0 inches)	88%	extreme
April Weather	26°C (78°F)	163 mm (6.4 inches)	89%	extreme
May Weather	25°C (77°F)	70 mm (2.8 inches)	82%	extreme
June Weather	25°C (77°F)	14 mm (0.5 inches)	60%	very high
July Weather	25°C (77°F)	1 mm (0.0 inches)	41%	very high
August Weather	27°C (80°F)	20 mm (0.8 inches)	30%	extreme
September Weather	28°C (82°F)	52 mm (2.0 inches)	24%	extreme
October Weather	27°C (81°F)	121 mm (4.8 inches)	29%	extreme
November Weather	26°C (79°F)	300 mm (11.8 inches)	62%	extreme
December Weather	25°C (78°F)	284 mm (11.2 inches)	83%	extreme