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August Weather in Oshkosh, United States

Last updated: June 24, 2025

In August, the average temperature in Oshkosh, United States is a pleasant 22°C (71°F), but you can expect minimums dipping to 12°C (53°F) and maximums soaring up to 31°C (87°F). With an average humidity of 76%, it’s a good idea to stay hydrated! However, be prepared for some rain, as the region receives about 107 mm (4.2 in) of precipitation spread over 10 days.

August Temperature in Oshkosh

In August in Oshkosh, the average temperature is 22°C (71°F). Maximums can reach 31°C (87°F) and minimums can be as low as 12°C (53°F). This mild climate makes it an ideal destination for outdoor activities and sightseeing.

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

The chart illustrates August temperature patterns in Oshkosh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oshkosh, August typically has an average temperature of 22°C (71°F), with highs reaching up to 31°C (87°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec212132425769747164513628
Data source: Temperature data for Oshkosh 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 Oshkosh

In Oshkosh in August, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

August Precipitation Trends in Oshkosh

The chart displays monthly precipitation patterns in Oshkosh, 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 Oshkosh, August typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec43466094107101100107751014747
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Oshkosh

In Oshkosh in August, humidity is 76%. With an average temperature of 22°C (71°F), this humidity feels like traveling through a warm, dense mist that clings to your skin, making every step feel heavier and the air seem thicker, which can be quite draining for outdoor activities.

August Average Humidity in Oshkosh

This chart illustrates the average monthly humidity levels in Oshkosh, 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 Oshkosh 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 Oshkosh

In Oshkosh 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 Oshkosh.

Maximum UV Index Levels in Oshkosh for August

The chart shows the monthly maximum UV Index (UVI) for Oshkosh 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 Oshkosh typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Oshkosh 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 Oshkosh Compares to Other Months

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

This table compares monthly weather conditions in Oshkosh, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)43 mm (1.7 inches)85%moderate
February Weather-6°C (21°F)46 mm (1.8 inches)85%moderate
March Weather0°C (32°F)60 mm (2.4 inches)85%moderate
April Weather6°C (43°F)94 mm (3.7 inches)85%very high
May Weather14°C (57°F)107 mm (4.2 inches)78%very high
June Weather20°C (69°F)101 mm (4.0 inches)80%very high
July Weather23°C (74°F)100 mm (3.9 inches)78%very high
August Weather22°C (71°F)107 mm (4.2 inches)76%very high
September Weather18°C (64°F)75 mm (3.0 inches)79%high
October Weather11°C (51°F)101 mm (4.0 inches)83%moderate
November Weather2°C (36°F)47 mm (1.8 inches)88%moderate
December Weather-2°C (28°F)47 mm (1.9 inches)81%low

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