September Weather in Sobral, Brazil

Last updated: August 22, 2025

In Sobral, Brazil, the average temperature in September reaches a warm 29°C (84°F), with minimums dropping to a comfortable 21°C (70°F) and maximums soaring to 36°C (98°F). Expect little to no rain, with only 3 mm (0.1 in) of precipitation over 0 days. The average humidity remains moderate at 55%, making it an ideal time to enjoy the outdoors!

September Temperature in Sobral

In September in Sobral, the average temperature is 29°C (84°F). Maximum temperatures can reach 36°C (98°F), while the minimum can drop to as low as 21°C (70°F). It's a great time to visit for those who enjoy warm weather and outdoor activities, so be sure to pack accordingly!

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

The chart illustrates September temperature patterns in Sobral, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sobral, September typically has an average temperature of 29°C (84°F), with highs reaching up to 36°C (98°F) and lows dropping to around 21°C (70°F).

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

September Precipitation in Sobral

In Sobral in September, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

September Precipitation Trends in Sobral

The chart displays monthly precipitation patterns in Sobral, 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 Sobral, September typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 0 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 Sobral

In Sobral in September humidity is 55%. With an average temperature of 29°C (84°F), this humidity feels like a warm, enveloping blanket, making outdoor activities slightly sweaty but still enjoyable for travelers who take breaks in the shade and stay hydrated.

September Average Humidity in Sobral

This chart illustrates the average monthly humidity levels in Sobral, 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 Sobral is approximately 55%, 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 Sobral

In Sobral 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 Sobral.

Maximum UV Index Levels in Sobral for September

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

Data source: Sobral 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 Sobral Compares to Other Months

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

This table compares monthly weather conditions in Sobral, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	28°C (82°F)	81 mm (3.2 inches)	87%	extreme
February Weather	27°C (81°F)	201 mm (7.9 inches)	88%	extreme
March Weather	26°C (80°F)	205 mm (8.1 inches)	89%	extreme
April Weather	26°C (80°F)	201 mm (7.9 inches)	90%	extreme
May Weather	27°C (80°F)	81 mm (3.2 inches)	87%	extreme
June Weather	27°C (81°F)	20 mm (0.8 inches)	77%	extreme
July Weather	27°C (81°F)	20 mm (0.8 inches)	62%	extreme
August Weather	28°C (83°F)	4 mm (0.1 inches)	54%	extreme
September Weather	29°C (84°F)	3 mm (0.1 inches)	55%	extreme
October Weather	29°C (85°F)	7 mm (0.3 inches)	58%	extreme
November Weather	29°C (85°F)	16 mm (0.6 inches)	62%	extreme
December Weather	29°C (84°F)	33 mm (1.3 inches)	74%	extreme