nomadseason

August Weather in Portage, United States

Last updated: June 24, 2025

In August, the average temperature in Portage, United States hovers around 21°C (71°F). Visitors can expect a comfortable range, with minimums dipping to 8°C (46°F) and maximums reaching 33°C (91°F). Rainfall is also part of the equation, with 105 mm (4.1 in) spread over 11 days. The air maintains a 76% humidity, making for a pleasantly warm atmosphere.

August Temperature in Portage

In August in Portage, the average temperature is 21°C (71°F). Maximums can reach 33°C (91°F), and minimums can be as low as 8°C (46°F). This climate is ideal for travelers seeking warm weather while still being prepared for cooler evenings.

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 21°C (71°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec202135455970747164503628
Data source: Temperature data for Portage generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 105 mm (4.1 in) over the course 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 105 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec47535895127113951051011114445
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Portage

In Portage in August humidity is 76%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket, making traveling both refreshing and a bit exhausting, as the air clings to your skin and you often find yourself reaching for water to stay hydrated.

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 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
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-6°C (21°F)46 mm (1.8 inches)85%low
February Weather-6°C (21°F)53 mm (2.1 inches)85%moderate
March Weather2°C (35°F)58 mm (2.3 inches)85%moderate
April Weather7°C (45°F)95 mm (3.8 inches)85%very high
May Weather15°C (59°F)127 mm (5.0 inches)78%very high
June Weather21°C (70°F)113 mm (4.4 inches)80%very high
July Weather23°C (74°F)95 mm (3.7 inches)78%very high
August Weather21°C (71°F)105 mm (4.1 inches)76%very high
September Weather18°C (65°F)101 mm (4.0 inches)79%high
October Weather10°C (51°F)111 mm (4.4 inches)83%moderate
November Weather2°C (36°F)44 mm (1.7 inches)88%moderate
December Weather-2°C (28°F)45 mm (1.8 inches)81%low

Compare Portage's Climate with Cities Worldwide