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September Weather in Biguacu, Brazil

Last updated: August 22, 2025

In September, the average temperature in Biguacu, Brazil hovers around 18°C (65°F). Expect a range where the minimum dips to 8°C (47°F) and can soar up to 31°C (89°F). Be prepared for 103 mm (4.1 in) of precipitation spread over 14 days, contributing to the average humidity of 82%.

September Temperature in Biguacu

In September in Biguacu, the average temperature is 18°C (65°F). The maximum can reach 31°C (89°F), and the minimum can be as low as 8°C (47°F). This mild climate makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Biguacu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Biguacu, September typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (89°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec757473696461596165676973
Data source: Temperature data for Biguacu 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 Biguacu

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

September Precipitation Trends in Biguacu

The chart displays monthly precipitation patterns in Biguacu, 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 Biguacu, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec225179155881151134268103146129190
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Biguacu

In Biguacu in September, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

September Average Humidity in Biguacu

This chart illustrates the average monthly humidity levels in Biguacu, 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 Biguacu is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%85%85%86%85%80%79%82%82%86%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Biguacu

In Biguacu in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Biguacu.

Maximum UV Index Levels in Biguacu for September

The chart shows the monthly maximum UV Index (UVI) for Biguacu 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 Biguacu typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210755810131415
Data source: Biguacu 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 Biguacu Compares to Other Months

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

This table compares monthly weather conditions in Biguacu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)225 mm (8.8 inches)86%extreme
February Weather23°C (74°F)179 mm (7.1 inches)83%extreme
March Weather23°C (73°F)155 mm (6.1 inches)85%extreme
April Weather20°C (69°F)87 mm (3.4 inches)85%very high
May Weather18°C (64°F)115 mm (4.5 inches)86%high
June Weather16°C (62°F)113 mm (4.5 inches)85%moderate
July Weather15°C (60°F)42 mm (1.7 inches)80%moderate
August Weather16°C (61°F)68 mm (2.7 inches)79%very high
September Weather18°C (65°F)103 mm (4.1 inches)82%very high
October Weather20°C (67°F)146 mm (5.7 inches)82%extreme
November Weather21°C (69°F)129 mm (5.1 inches)86%extreme
December Weather23°C (73°F)190 mm (7.5 inches)88%extreme

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