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September Weather in Antonina, Brazil

Last updated: August 22, 2025

In September, the average temperature in Antonina, Brazil hovers around 19°C (67°F). Expect a range where the minimum can dip to 10°C (50°F) and the maximum can soar up to 32°C (90°F). This month also sees an average precipitation of 111 mm (4.4 in) over 17 days, accompanied by a moderate average humidity of 73%. Prepare accordingly for a mix of pleasant warmth and occasional showers!

September Temperature in Antonina

In September in Antonina, the average temperature is 19°C (67°F). The maximum can reach 32°C (90°F) and the minimum can be as low as 10°C (50°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Antonina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Antonina, September typically has an average temperature of 19°C (67°F), with highs reaching up to 32°C (90°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec767574706664626366687073
Data source: Temperature data for Antonina 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 Antonina

In Antonina in September, the precipitation amount is 111 mm (4.4 in) spread over 17 days.

September Precipitation Trends in Antonina

The chart displays monthly precipitation patterns in Antonina, 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 Antonina, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec2872452451181391144795111222179247
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Antonina

In Antonina in September humidity is 73%. With an average temperature of 19°C (67°F), this humidity feels like a warm blanket wrapped around you, making travel slightly uncomfortable and sticky, but still manageable as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Antonina

This chart illustrates the average monthly humidity levels in Antonina, 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 Antonina 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 Antonina

In Antonina 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 Antonina.

Maximum UV Index Levels in Antonina for September

The chart shows the monthly maximum UV Index (UVI) for Antonina 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 Antonina typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141311766811131415
Data source: Antonina 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 Antonina Compares to Other Months

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

This table compares monthly weather conditions in Antonina, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)287 mm (11.3 inches)89%extreme
February Weather24°C (75°F)245 mm (9.6 inches)86%extreme
March Weather23°C (74°F)245 mm (9.6 inches)87%extreme
April Weather21°C (70°F)118 mm (4.6 inches)85%extreme
May Weather19°C (66°F)139 mm (5.5 inches)84%high
June Weather18°C (64°F)114 mm (4.5 inches)83%high
July Weather17°C (62°F)47 mm (1.8 inches)78%high
August Weather17°C (63°F)95 mm (3.7 inches)73%very high
September Weather19°C (67°F)111 mm (4.4 inches)73%extreme
October Weather20°C (69°F)222 mm (8.7 inches)71%extreme
November Weather21°C (70°F)179 mm (7.1 inches)83%extreme
December Weather23°C (73°F)246 mm (9.7 inches)87%extreme

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