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September Weather in Santo Antonio de Posse, Brazil

Last updated: August 22, 2025

In September, the average temperature in Santo Antonio de Posse, Brazil hovers around 23°C (74°F), offering a comfortable climate for outdoor activities. Expect temperature variations with a minimum of 10°C (50°F) and a peak reaching 37°C (99°F). Rainfall is moderate, with about 40 mm (1.6 in) of precipitation spread over 5 days, while the average humidity sits at a pleasant 58%.

September Temperature in Santo Antonio de Posse

In September in Santo Antonio de Posse, the average temperature is 23°C (74°F). Maximums can reach up to 37°C (99°F), and minimums can drop as low as 10°C (50°F). Be prepared for warm days and cooler nights while exploring the beautiful surroundings.

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

The chart illustrates September temperature patterns in Santo Antonio de Posse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Antonio de Posse, September typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676726766646774757476
Data source: Temperature data for Santo Antonio de Posse 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 Santo Antonio de Posse

In Santo Antonio de Posse in September, the precipitation amount is 40 mm (1.6 in) over the course of 5 days.

September Precipitation Trends in Santo Antonio de Posse

The chart displays monthly precipitation patterns in Santo Antonio de 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 Santo Antonio de Posse, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec20618011759432594240118156163
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santo Antonio de Posse

In Santo Antonio de Posse in September, humidity is 58%. With an average temperature of 23°C (74°F), this humidity feels like a warm, inviting embrace, making traveling enjoyable yet slightly sticky.

September Average Humidity in Santo Antonio de Posse

This chart illustrates the average monthly humidity levels in Santo Antonio de 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 Santo Antonio de Posse is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santo Antonio de Posse

In Santo Antonio de Posse in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Santo Antonio de Posse.

Maximum UV Index Levels in Santo Antonio de Posse for September

The chart shows the monthly maximum UV Index (UVI) for Santo Antonio de 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 Santo Antonio de Posse typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118671011131416
Data source: Santo Antonio de 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 Santo Antonio de Posse Compares to Other Months

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

This table compares monthly weather conditions in Santo Antonio de Posse, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)206 mm (8.1 inches)88%extreme
February Weather24°C (76°F)180 mm (7.1 inches)88%extreme
March Weather24°C (76°F)117 mm (4.6 inches)87%extreme
April Weather22°C (72°F)59 mm (2.3 inches)84%extreme
May Weather20°C (68°F)43 mm (1.7 inches)79%very high
June Weather19°C (67°F)25 mm (1.0 inches)77%high
July Weather18°C (65°F)9 mm (0.3 inches)72%high
August Weather19°C (67°F)42 mm (1.6 inches)65%very high
September Weather23°C (74°F)40 mm (1.6 inches)58%extreme
October Weather24°C (75°F)118 mm (4.7 inches)50%extreme
November Weather23°C (74°F)156 mm (6.1 inches)75%extreme
December Weather24°C (76°F)163 mm (6.4 inches)80%extreme

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