September Weather in Cabo, Brazil

Last updated: August 22, 2025

In Cabo, Brazil, the average temperature in September is a pleasant 25°C (77°F). Expect daytime highs reaching up to 29°C (84°F), with nighttime lows around 21°C (71°F). During this time, the region sees precipitation totaling 73 mm (2.9 in) across approximately 23 days, contributing to the average humidity level of 79%.

September Temperature in Cabo

In September in Cabo, the average temperature is 25°C (77°F). Maximums can reach 29°C (84°F), and minimums can be as low as 21°C (71°F). It's a perfect time for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Cabo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cabo, September typically has an average temperature of 25°C (77°F), with highs reaching up to 29°C (84°F) and lows dropping to around 21°C (71°F).

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

September Precipitation in Cabo

In Cabo in September, the precipitation amount reaches 73 mm (2.9 in) over a span of 23 days.

September Precipitation Trends in Cabo

The chart displays monthly precipitation patterns in Cabo, 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 Cabo, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 23 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 Cabo

In Cabo in September, humidity is 79%. With an average temperature of 25°C (77°F), this humidity feels like a warm blanket wrapping around you, making travel feel slightly sluggish but pleasantly tropical.

September Average Humidity in Cabo

This chart illustrates the average monthly humidity levels in Cabo, 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 Cabo is approximately 79%, 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 Cabo

In Cabo in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Cabo.

Maximum UV Index Levels in Cabo for September

The chart shows the monthly maximum UV Index (UVI) for Cabo 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 Cabo typically reaches 13, which falls under the extreme exposure category.

Data source: Cabo 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 Cabo Compares to Other Months

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

This table compares monthly weather conditions in Cabo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	66 mm (2.6 inches)	84%	extreme
February Weather	27°C (80°F)	83 mm (3.3 inches)	87%	extreme
March Weather	27°C (80°F)	120 mm (4.7 inches)	88%	extreme
April Weather	26°C (80°F)	144 mm (5.7 inches)	89%	extreme
May Weather	26°C (79°F)	169 mm (6.7 inches)	90%	extreme
June Weather	25°C (77°F)	206 mm (8.1 inches)	89%	extreme
July Weather	24°C (76°F)	163 mm (6.4 inches)	86%	extreme
August Weather	24°C (76°F)	109 mm (4.3 inches)	84%	extreme
September Weather	25°C (77°F)	73 mm (2.9 inches)	79%	extreme
October Weather	25°C (78°F)	56 mm (2.2 inches)	74%	extreme
November Weather	26°C (79°F)	55 mm (2.2 inches)	71%	extreme
December Weather	26°C (80°F)	60 mm (2.4 inches)	72%	extreme