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September Weather in Butia, Brazil

Last updated: August 22, 2025

In Butia, Brazil, the average temperature in September is a mild 18°C (65°F). However, you may experience a range from a cool 6°C (43°F) to a warm 34°C (94°F). Be prepared for about 147 mm (5.8 in) of precipitation spread over 12 days, contributing to a high average humidity of 84%.

September Temperature in Butia

In September in Butia, the average temperature is 18°C (65°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 6°C (43°F). This variety in temperatures makes it essential for travelers to pack layers to enjoy all that Butia has to offer comfortably.

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

The chart illustrates September temperature patterns in Butia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Butia, September typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec787774706259576064687175
Data source: Temperature data for Butia 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 Butia

In Butia in September, the precipitation amount is 147 mm (5.8 in) over a span of 12 days.

September Precipitation Trends in Butia

The chart displays monthly precipitation patterns in Butia, 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 Butia, September typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec9288102771631201218314714410961
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Butia

In Butia in September, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

September Average Humidity in Butia

This chart illustrates the average monthly humidity levels in Butia, 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 Butia is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%79%82%87%85%82%81%84%85%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Butia

In Butia in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Butia.

Maximum UV Index Levels in Butia for September

The chart shows the monthly maximum UV Index (UVI) for Butia 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 Butia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312964579121314
Data source: Butia 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 Butia Compares to Other Months

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

This table compares monthly weather conditions in Butia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)92 mm (3.6 inches)77%extreme
February Weather25°C (77°F)88 mm (3.5 inches)79%extreme
March Weather23°C (75°F)102 mm (4.0 inches)79%extreme
April Weather21°C (70°F)77 mm (3.0 inches)82%very high
May Weather17°C (63°F)163 mm (6.4 inches)87%high
June Weather15°C (59°F)120 mm (4.7 inches)85%moderate
July Weather14°C (57°F)121 mm (4.7 inches)82%moderate
August Weather15°C (60°F)83 mm (3.3 inches)81%high
September Weather18°C (65°F)147 mm (5.8 inches)84%very high
October Weather20°C (68°F)144 mm (5.7 inches)85%extreme
November Weather22°C (71°F)109 mm (4.3 inches)82%extreme
December Weather24°C (76°F)61 mm (2.4 inches)84%extreme

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