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August Weather in Oshkosh, United States

Last updated: June 24, 2025

In Oshkosh, United States, the average temperature in August is a pleasant 23°C (73°F). However, temperatures can vary significantly, ranging from a cool 9°C (49°F) to a sweltering 37°C (99°F). Visitors should also prepare for some rain, as the area experiences about 47 mm (1.8 in) of precipitation over 8 days. With an average humidity level of 79%, it's an ideal time to enjoy the vibrant atmosphere of this locale!

August Temperature in Oshkosh

In August in Oshkosh, the average temperature is 23°C (73°F). The maximum can reach 37°C (99°F) and the minimum can be as low as 9°C (49°F). This makes it a great destination for travelers who enjoy warm weather but should also be prepared for cooler evenings.

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 23°C (73°F), with highs reaching up to 37°C (99°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec292740475771767367484032
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 47 mm (1.8 in) over the course of 8 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 47 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1218605213549534732332017
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 79%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace that clings to the skin, making travel feel both invigorating and slightly exhausting as the air wraps around you like a damp blanket.

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 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
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-2°C (30°F)12 mm (0.5 inches)73%moderate
February Weather-3°C (28°F)18 mm (0.7 inches)80%moderate
March Weather4°C (40°F)59 mm (2.3 inches)64%high
April Weather8°C (47°F)52 mm (2.1 inches)64%very high
May Weather14°C (57°F)135 mm (5.3 inches)76%very high
June Weather22°C (71°F)49 mm (1.9 inches)79%extreme
July Weather25°C (76°F)53 mm (2.1 inches)77%extreme
August Weather23°C (73°F)47 mm (1.8 inches)79%very high
September Weather19°C (67°F)32 mm (1.3 inches)70%very high
October Weather9°C (48°F)33 mm (1.3 inches)64%high
November Weather5°C (41°F)20 mm (0.8 inches)75%moderate
December Weather0°C (33°F)17 mm (0.7 inches)78%moderate

Compare Oshkosh's Climate with Cities Worldwide