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September Weather in Quatro Barras, Brazil

Last updated: August 22, 2025

In September, the average temperature in Quatro Barras, Brazil hovers around 18°C (64°F), offering a pleasant climate. Expect a comfortable range with minimums dipping to 8°C (46°F) and maximums reaching up to 32°C (89°F). However, be prepared for some rainfall, as 103 mm (4.1 in) of precipitation can occur over approximately 14 days, contributing to an average humidity of 73%.

September Temperature in Quatro Barras

In September in Quatro Barras, the average temperature is 18°C (64°F). Maximums can reach 32°C (89°F), while minimums can be as low as 8°C (46°F). This pleasant climate makes it an ideal time for travelers to explore the vibrant culture and stunning landscapes of Quatro Barras.

September Weather in Quatro Barras: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Quatro Barras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Quatro Barras, September typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (89°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec727170666260585964656669
Data source: Temperature data for Quatro Barras 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 Quatro Barras

In Quatro Barras in September, the precipitation amount is 103 mm (4.1 in) distributed over a period of 14 days.

September Precipitation Trends in Quatro Barras

The chart displays monthly precipitation patterns in Quatro Barras, 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 Quatro Barras, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec267215198881121164693103205148222
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Quatro Barras

In Quatro Barras in September, humidity is 73%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can leave travelers feeling a bit sluggish, making outdoor activities feel more demanding and encouraging frequent breaks to hydrate and cool off.

September Average Humidity in Quatro Barras

This chart illustrates the average monthly humidity levels in Quatro Barras, 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 Quatro Barras is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%87%85%85%83%78%73%73%71%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Quatro Barras

In Quatro Barras 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 Quatro Barras.

Maximum UV Index Levels in Quatro Barras for September

The chart shows the monthly maximum UV Index (UVI) for Quatro Barras 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 Quatro Barras typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151311866911141515
Data source: Quatro Barras 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 Quatro Barras Compares to Other Months

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

This table compares monthly weather conditions in Quatro Barras, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)267 mm (10.5 inches)89%extreme
February Weather21°C (71°F)215 mm (8.5 inches)86%extreme
March Weather21°C (70°F)198 mm (7.8 inches)87%extreme
April Weather19°C (66°F)88 mm (3.5 inches)85%extreme
May Weather17°C (62°F)112 mm (4.4 inches)84%very high
June Weather16°C (60°F)116 mm (4.6 inches)83%high
July Weather14°C (58°F)46 mm (1.8 inches)78%high
August Weather15°C (59°F)93 mm (3.7 inches)73%very high
September Weather18°C (64°F)103 mm (4.1 inches)73%extreme
October Weather18°C (65°F)205 mm (8.1 inches)71%extreme
November Weather19°C (67°F)148 mm (5.8 inches)83%extreme
December Weather21°C (70°F)222 mm (8.7 inches)87%extreme

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