September Weather in Arroio do Meio, Brazil

Last updated: August 22, 2025

In Arroio do Meio, Brazil, the average temperature in September hovers around 18°C (64°F). Expect a minimum of 4°C (40°F) and a maximum soaring to 34°C (94°F), making this month quite variable. Rain is a regular visitor, with approximately 176 mm (6.9 in) of precipitation spread over 13 days. Maintain your hydration; the average humidity is a notable 80%.

September Temperature in Arroio do Meio

In September in Arroio do Meio, the average temperature is 18°C (64°F). The maximum can reach 34°C (94°F), while the minimum can dip as low as 4°C (40°F). This diverse range of temperatures makes it essential for travelers to pack accordingly, ensuring comfort for both warm days and cool nights.

September Weather in Arroio do Meio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Arroio do Meio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroio do Meio, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec777572686159576064677074
Data source: Temperature data for Arroio do Meio 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 Arroio do Meio

In Arroio do Meio in September, the precipitation amount is 176 mm (6.9 in) spread over 13 days.

September Precipitation Trends in Arroio do Meio

The chart displays monthly precipitation patterns in Arroio do Meio, 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 Arroio do Meio, September typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec129121124951741281228017615113299
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Arroio do Meio

In Arroio do Meio in September humidity is 80%. With an average temperature of 18°C (64°F), this humidity feels like a warm, damp blanket wrapping around you, making travel a bit more exhausting as the air thickens and the heat clings to your skin.

September Average Humidity in Arroio do Meio

This chart illustrates the average monthly humidity levels in Arroio do Meio, 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 Arroio do Meio is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%79%83%88%86%82%77%80%84%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Arroio do Meio

In Arroio do Meio 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 Arroio do Meio.

Maximum UV Index Levels in Arroio do Meio for September

The chart shows the monthly maximum UV Index (UVI) for Arroio do Meio 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 Arroio do Meio typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312965579121314
Data source: Arroio do Meio 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 Arroio do Meio Compares to Other Months

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

This table compares monthly weather conditions in Arroio do Meio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)129 mm (5.1 inches)80%extreme
February Weather24°C (75°F)121 mm (4.8 inches)77%extreme
March Weather22°C (73°F)124 mm (4.9 inches)79%extreme
April Weather20°C (69°F)95 mm (3.7 inches)83%very high
May Weather16°C (62°F)174 mm (6.9 inches)88%high
June Weather15°C (59°F)128 mm (5.0 inches)86%moderate
July Weather14°C (57°F)122 mm (4.8 inches)82%moderate
August Weather15°C (60°F)80 mm (3.1 inches)77%high
September Weather18°C (64°F)176 mm (6.9 inches)80%very high
October Weather19°C (67°F)150 mm (5.9 inches)84%extreme
November Weather21°C (70°F)132 mm (5.2 inches)83%extreme
December Weather23°C (74°F)99 mm (3.9 inches)87%extreme

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