September Weather in Posse, Brazil

Last updated: August 22, 2025

In September, the average temperature in Posse, Brazil settles at a comfortable 26°C (79°F). Expect to feel the range of temperatures, with a minimum of 15°C (59°F) and soaring highs of 37°C (99°F). The atmosphere remains pleasantly dry, with an average humidity of just 38% and only 3 mm (0.1 in) of precipitation over 0 days. Enjoy the warmth!

September Temperature in Posse

In September in Posse, the average temperature is 26°C (79°F), with maximums reaching 37°C (99°F) and minimums dropping to as low as 15°C (59°F). This pleasant weather makes Posse an ideal destination for travelers looking to enjoy warm days and cooler nights.

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

The chart illustrates September temperature patterns in Posse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Posse, September typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 15°C (59°F).

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

September Precipitation in Posse

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

September Precipitation Trends in Posse

The chart displays monthly precipitation patterns in Posse, 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 Posse, 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 Posse

In Posse in September humidity is 38%. With an average temperature of 26°C (79°F), this humidity feels like a refreshing embrace, making it comfortable for traveling and exploring the area without feeling too sticky or heavy.

September Average Humidity in Posse

This chart illustrates the average monthly humidity levels in Posse, 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 Posse is approximately 38%, 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 Posse

In Posse 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 Posse.

Maximum UV Index Levels in Posse for September

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

Data source: Posse 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 Posse Compares to Other Months

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

This table compares monthly weather conditions in Posse, 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)	143 mm (5.6 inches)	83%	extreme
February Weather	23°C (74°F)	281 mm (11.1 inches)	88%	extreme
March Weather	24°C (75°F)	233 mm (9.2 inches)	90%	extreme
April Weather	24°C (75°F)	123 mm (4.9 inches)	80%	extreme
May Weather	23°C (73°F)	15 mm (0.6 inches)	62%	extreme
June Weather	22°C (73°F)	1 mm (0.0 inches)	54%	very high
July Weather	21°C (71°F)	0 mm (0.0 inches)	50%	very high
August Weather	24°C (75°F)	3 mm (0.1 inches)	45%	extreme
September Weather	26°C (79°F)	3 mm (0.1 inches)	38%	extreme
October Weather	26°C (80°F)	103 mm (4.0 inches)	29%	extreme
November Weather	24°C (75°F)	247 mm (9.7 inches)	39%	extreme
December Weather	23°C (74°F)	246 mm (9.7 inches)	54%	extreme