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August Weather in Portage, United States

Last updated: June 24, 2025

In August, the average temperature in Portage, United States hovers around 22°C (72°F), offering a pleasant climate for outdoor activities. Expect temperatures to range from a cool 8°C (46°F) to a warm 33°C (91°F). With an average humidity of 79%, the air feels quite refreshing, although be prepared for 81 mm (3.2 in) of precipitation spread over 11 days, ensuring the landscape remains lush and vibrant.

August Temperature in Portage

In August in Portage, the average temperature is 22°C (72°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as 8°C (46°F). This varied climate makes it an ideal time for travelers to enjoy a mix of warm and cool experiences.

August Weather in Portage: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Portage, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portage, August typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec262737476070747266533933
Data source: Temperature data for Portage 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 Portage

In Portage in August, the precipitation amount is 81 mm (3.2 in) over a span of 11 days.

August Precipitation Trends in Portage

The chart displays monthly precipitation patterns in Portage, 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 Portage, August typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7276869715112011081941377265
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Portage

In Portage in August humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.

August Average Humidity in Portage

This chart illustrates the average monthly humidity levels in Portage, 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 Portage is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Portage

In Portage 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 Portage.

Maximum UV Index Levels in Portage for August

The chart shows the monthly maximum UV Index (UVI) for Portage 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 Portage typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101097532
Data source: Portage 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 Portage Compares to Other Months

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

This table compares monthly weather conditions in Portage, 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)87%moderate
February Weather-3°C (28°F)75 mm (3.0 inches)87%moderate
March Weather3°C (38°F)86 mm (3.4 inches)86%high
April Weather8°C (47°F)97 mm (3.8 inches)87%very high
May Weather15°C (60°F)151 mm (5.9 inches)82%very high
June Weather21°C (71°F)120 mm (4.7 inches)81%very high
July Weather24°C (75°F)109 mm (4.3 inches)78%very high
August Weather22°C (72°F)81 mm (3.2 inches)79%very high
September Weather19°C (66°F)94 mm (3.7 inches)79%high
October Weather12°C (54°F)137 mm (5.4 inches)82%moderate
November Weather4°C (39°F)72 mm (2.8 inches)87%moderate
December Weather0°C (33°F)65 mm (2.6 inches)86%low

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