September Weather in Serrana, Brazil

Last updated: August 22, 2025

In September, the average temperature in Serrana, Brazil is a warm 25°C (77°F), with a minimum of 11°C (52°F) and soaring up to a maximum of 38°C (100°F). Expect about 28 mm (1.1 in) of precipitation over 3 days, accompanied by an average humidity of 41%. Whether you’re planning outdoor activities or just exploring, this month offers a delightful climate!

September Temperature in Serrana

In September in Serrana, the average temperature is 25°C (77°F). Maximums can reach 38°C (100°F), and minimums can be as low as 11°C (52°F). This comfortable climate makes Serrana an ideal destination for travelers seeking both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Serrana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Serrana, September typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Serrana

In Serrana in September, the precipitation amount is 28 mm (1.1 in) over the course of 3 days.

September Precipitation Trends in Serrana

The chart displays monthly precipitation patterns in Serrana, 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 Serrana, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 3 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 Serrana

In Serrana in September humidity is 41%. With an average temperature of 25°C (77°F), this humidity feels like a pleasant embrace, making it comfortable for traveling and exploring the area without feeling overly sticky or weighed down.

September Average Humidity in Serrana

This chart illustrates the average monthly humidity levels in Serrana, 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 Serrana is approximately 41%, 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 Serrana

In Serrana 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 Serrana.

Maximum UV Index Levels in Serrana for September

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

Data source: Serrana 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 Serrana Compares to Other Months

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

This table compares monthly weather conditions in Serrana, 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 (77°F)	182 mm (7.2 inches)	85%	extreme
February Weather	24°C (76°F)	155 mm (6.1 inches)	87%	extreme
March Weather	24°C (76°F)	112 mm (4.4 inches)	86%	extreme
April Weather	23°C (73°F)	59 mm (2.3 inches)	79%	extreme
May Weather	20°C (69°F)	31 mm (1.2 inches)	68%	very high
June Weather	20°C (68°F)	10 mm (0.4 inches)	60%	high
July Weather	19°C (66°F)	10 mm (0.4 inches)	57%	very high
August Weather	21°C (70°F)	19 mm (0.7 inches)	48%	very high
September Weather	25°C (77°F)	28 mm (1.1 inches)	41%	extreme
October Weather	25°C (77°F)	117 mm (4.6 inches)	35%	extreme
November Weather	24°C (76°F)	156 mm (6.1 inches)	65%	extreme
December Weather	24°C (76°F)	189 mm (7.5 inches)	80%	extreme