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August Weather in South Milwaukee, United States

Last updated: June 24, 2025

In August, the average temperature in South Milwaukee, United States is a pleasant 21°C (70°F). Expect a minimum of 15°C (60°F) and a maximum of 27°C (81°F), making it a comfortable time to explore the area. However, be prepared for 60 mm (2.4 in) of precipitation spread over about 8 days, and don’t forget that the average humidity hovers around 76%.

August Temperature in South Milwaukee

In August in South Milwaukee, the average temperature is 21°C (70°F). The maximum can reach 27°C (81°F) and the minimum can be as low as 15°C (60°F). This pleasant climate makes South Milwaukee an ideal destination for travelers seeking comfortable weather.

August Weather in South Milwaukee: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in South Milwaukee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Milwaukee, August typically has an average temperature of 21°C (70°F), with highs reaching up to 27°C (81°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec272734394657687065544034
Data source: Temperature data for South Milwaukee 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 South Milwaukee

In South Milwaukee in August, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

August Precipitation Trends in South Milwaukee

The chart displays monthly precipitation patterns in South Milwaukee, 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 South Milwaukee, August typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec727176112145876160951396763
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in South Milwaukee

In South Milwaukee in August, humidity is 76%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel more strenuous, prompting travelers to take frequent breaks and seek shade to stay comfortable during their adventures.

August Average Humidity in South Milwaukee

This chart illustrates the average monthly humidity levels in South Milwaukee, 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 South Milwaukee is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in South Milwaukee

In South Milwaukee in August, 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 South Milwaukee.

Maximum UV Index Levels in South Milwaukee for August

The chart shows the monthly maximum UV Index (UVI) for South Milwaukee 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 South Milwaukee typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: South Milwaukee 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 South Milwaukee Compares to Other Months

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

This table compares monthly weather conditions in South Milwaukee, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)72 mm (2.8 inches)85%low
February Weather-3°C (28°F)71 mm (2.8 inches)85%moderate
March Weather1°C (34°F)76 mm (3.0 inches)85%moderate
April Weather4°C (39°F)112 mm (4.4 inches)85%very high
May Weather8°C (46°F)145 mm (5.7 inches)78%very high
June Weather14°C (58°F)87 mm (3.4 inches)80%very high
July Weather20°C (68°F)61 mm (2.4 inches)78%very high
August Weather21°C (70°F)60 mm (2.4 inches)76%very high
September Weather18°C (66°F)95 mm (3.7 inches)79%high
October Weather12°C (54°F)139 mm (5.5 inches)83%moderate
November Weather4°C (40°F)67 mm (2.6 inches)88%moderate
December Weather1°C (34°F)63 mm (2.5 inches)81%low

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