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August Weather in Arroio Grande, Brazil

Last updated: August 22, 2025

In August, the average temperature in Arroio Grande, Brazil is a comfortable 14°C (57°F). However, be prepared for a range, as temperatures can dip to a chilly 2°C (37°F) or rise to a warm 30°C (86°F). This month typically sees 119 mm (4.7 in) of precipitation over about 8 days, contributing to an average humidity of 78%.

August Temperature in Arroio Grande

In August in Arroio Grande, the average temperature is 14°C (57°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as 2°C (37°F). This varied climate makes it essential for travelers to pack layers to comfortably enjoy all that Arroio Grande has to offer during this time.

August Weather in Arroio Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Arroio Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroio Grande, August typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec757472686157555761646872
Data source: Temperature data for Arroio Grande 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.

August Precipitation in Arroio Grande

In Arroio Grande in August, the precipitation amount is 119 mm (4.7 in) over a span of 8 days.

August Precipitation Trends in Arroio Grande

The chart displays monthly precipitation patterns in Arroio Grande, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Arroio Grande, August typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec135987479881011121191531358073
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Arroio Grande

In Arroio Grande in August, humidity is 78%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket wrapping around you, making outdoor exploration a bit uncomfortable but still enjoyable if you stay hydrated and plan for breaks in the shade.

August Average Humidity in Arroio Grande

This chart illustrates the average monthly humidity levels in Arroio Grande, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Arroio Grande is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%74%76%82%87%86%81%78%82%82%79%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Arroio Grande

In Arroio Grande in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Arroio Grande, you can refer to this Hourly UV Index in Arroio Grande.

Maximum UV Index Levels in Arroio Grande for August

The chart shows the monthly maximum UV Index (UVI) for Arroio Grande in August, 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 August, the maximum UV index in Arroio Grande typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312854469111314
Data source: Arroio Grande August 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 August Weather in Arroio Grande Compares to Other Months

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

This table compares monthly weather conditions in Arroio Grande, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)135 mm (5.3 inches)71%extreme
February Weather23°C (74°F)98 mm (3.9 inches)74%extreme
March Weather22°C (72°F)74 mm (2.9 inches)76%extreme
April Weather20°C (68°F)79 mm (3.1 inches)81%very high
May Weather16°C (61°F)88 mm (3.5 inches)87%moderate
June Weather14°C (57°F)101 mm (4.0 inches)86%moderate
July Weather13°C (55°F)112 mm (4.4 inches)81%moderate
August Weather14°C (57°F)119 mm (4.7 inches)78%high
September Weather16°C (61°F)153 mm (6.0 inches)82%very high
October Weather18°C (64°F)135 mm (5.3 inches)82%extreme
November Weather20°C (69°F)80 mm (3.1 inches)79%extreme
December Weather22°C (72°F)72 mm (2.9 inches)77%extreme

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