September Weather in Cacu, Brazil

Last updated: August 22, 2025

In September, the average temperature in Cacu, Brazil hovers around 27°C (82°F). However, you can expect a range from a crisp 12°C (54°F) to a sizzling 40°C (105°F). With an average precipitation of just 21 mm (0.8 in) over 2 days, and a comfortable humidity level of 39%, the weather is generally pleasant, perfect for outdoor adventures!

September Temperature in Cacu

In September in Cacu, the average temperature is 27°C (82°F). Maximums can reach 40°C (105°F), and minimums can be as low as 12°C (54°F). Be prepared for warm days and cooler nights when traveling during this time.

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

The chart illustrates September temperature patterns in Cacu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cacu, September typically has an average temperature of 27°C (82°F), with highs reaching up to 40°C (105°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Cacu

In Cacu in September, the precipitation amount is 21 mm (0.8 in) over a period of 2 days.

September Precipitation Trends in Cacu

The chart displays monthly precipitation patterns in Cacu, 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 Cacu, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 2 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 Cacu

In Cacu in September, humidity is 39%. With an average temperature of 27°C (82°F), this humidity feels like a warm, pleasant embrace for traveling, making it comfortable for outdoor exploration and leisurely activities.

September Average Humidity in Cacu

This chart illustrates the average monthly humidity levels in Cacu, 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 Cacu is approximately 39%, 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 Cacu

In Cacu 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 Cacu.

Maximum UV Index Levels in Cacu for September

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

Data source: Cacu 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 Cacu Compares to Other Months

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

This table compares monthly weather conditions in Cacu, 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)	143 mm (5.6 inches)	86%	extreme
February Weather	25°C (78°F)	173 mm (6.8 inches)	87%	extreme
March Weather	25°C (78°F)	127 mm (5.0 inches)	87%	extreme
April Weather	24°C (76°F)	68 mm (2.7 inches)	81%	extreme
May Weather	22°C (72°F)	21 mm (0.8 inches)	71%	very high
June Weather	22°C (72°F)	3 mm (0.1 inches)	63%	very high
July Weather	21°C (70°F)	1 mm (0.1 inches)	57%	very high
August Weather	24°C (75°F)	10 mm (0.4 inches)	47%	extreme
September Weather	27°C (82°F)	21 mm (0.8 inches)	39%	extreme
October Weather	27°C (81°F)	100 mm (3.9 inches)	34%	extreme
November Weather	26°C (78°F)	193 mm (7.6 inches)	64%	extreme
December Weather	26°C (78°F)	182 mm (7.2 inches)	84%	extreme