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September Weather in Desterro, Brazil

Last updated: August 22, 2025

In September, the average temperature in Desterro, Brazil is a pleasant 25°C (78°F). Expect a minimum of 17°C (63°F) and a maximum reaching up to 35°C (96°F). With an average humidity of 72%, conditions are typically comfortable. Additionally, you'll only see about 2 mm (0.1 in) of precipitation over the month, making September a great time to enjoy the outdoors!

September Temperature in Desterro

In September in Desterro, the average temperature is 25°C (78°F). Maximums can reach 35°C (96°F), and minimums can be as low as 17°C (63°F). This climate makes Desterro a perfect destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Desterro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Desterro, September typically has an average temperature of 25°C (78°F), with highs reaching up to 35°C (96°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec818079787775757677808181
Data source: Temperature data for Desterro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Desterro

In Desterro in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Desterro

The chart displays monthly precipitation patterns in Desterro, 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 Desterro, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec2610212481411713432410
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Desterro

In Desterro in September humidity is 72%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket wrapping around you, making it essential to stay hydrated and take breaks in the shade while exploring.

September Average Humidity in Desterro

This chart illustrates the average monthly humidity levels in Desterro, 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 Desterro is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Desterro

In Desterro in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Desterro, you can check here.

Maximum UV Index Levels in Desterro for September

The chart shows the monthly maximum UV Index (UVI) for Desterro 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 Desterro typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515141311111214141515
Data source: Desterro 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 Desterro Compares to Other Months

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

This table compares monthly weather conditions in Desterro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)26 mm (1.0 inches)86%extreme
February Weather27°C (80°F)102 mm (4.0 inches)89%extreme
March Weather26°C (79°F)124 mm (4.9 inches)89%extreme
April Weather26°C (79°F)81 mm (3.2 inches)89%extreme
May Weather25°C (77°F)41 mm (1.6 inches)90%extreme
June Weather24°C (76°F)17 mm (0.7 inches)86%extreme
July Weather24°C (75°F)13 mm (0.5 inches)80%extreme
August Weather24°C (76°F)4 mm (0.1 inches)77%extreme
September Weather25°C (78°F)2 mm (0.1 inches)72%extreme
October Weather27°C (80°F)2 mm (0.1 inches)68%extreme
November Weather27°C (81°F)4 mm (0.1 inches)66%extreme
December Weather27°C (81°F)10 mm (0.4 inches)70%extreme

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