September Weather in Jacarei, Brazil

Last updated: August 22, 2025

In September, the average temperature in Jacarei, Brazil is a pleasant 21°C (70°F). You can expect the temperature to range from a cool 11°C (52°F) to a warm 35°C (94°F). During this month, anticipate 50 mm (2.0 in) of precipitation spread over about 6 days, accompanied by an average humidity of 58%. Enjoy the temperate climate!

September Temperature in Jacarei

In September in Jacarei, the average temperature is 21°C (70°F). Maximums can reach 35°C (94°F) and minimums can be as low as 11°C (52°F). This makes Jacarei an ideal destination for travelers seeking a warm climate with comfortable evenings.

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

The chart illustrates September temperature patterns in Jacarei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jacarei, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (94°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Jacarei

In Jacarei in September, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

September Precipitation Trends in Jacarei

The chart displays monthly precipitation patterns in Jacarei, 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 Jacarei, September typically receives around 50 mm (2.0 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 Jacarei

In Jacarei in September, humidity is 58%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, creating a tropical atmosphere that's perfect for leisurely strolls but may require frequent breaks to stay hydrated during your travels.

September Average Humidity in Jacarei

This chart illustrates the average monthly humidity levels in Jacarei, 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 Jacarei 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 Jacarei

In Jacarei 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 Jacarei.

Maximum UV Index Levels in Jacarei for September

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

Data source: Jacarei 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 Jacarei Compares to Other Months

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

This table compares monthly weather conditions in Jacarei, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	161 mm (6.3 inches)	88%	extreme
February Weather	23°C (74°F)	154 mm (6.0 inches)	88%	extreme
March Weather	23°C (74°F)	122 mm (4.8 inches)	87%	extreme
April Weather	21°C (70°F)	47 mm (1.8 inches)	84%	extreme
May Weather	19°C (66°F)	50 mm (2.0 inches)	79%	very high
June Weather	18°C (65°F)	35 mm (1.4 inches)	77%	high
July Weather	17°C (62°F)	21 mm (0.8 inches)	72%	high
August Weather	18°C (64°F)	54 mm (2.1 inches)	65%	very high
September Weather	21°C (70°F)	50 mm (2.0 inches)	58%	extreme
October Weather	21°C (71°F)	120 mm (4.7 inches)	50%	extreme
November Weather	21°C (71°F)	123 mm (4.8 inches)	75%	extreme
December Weather	23°C (73°F)	149 mm (5.9 inches)	80%	extreme