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August Weather in Madison, United States

Last updated: June 24, 2025

In August, the average temperature in Madison, United States is a pleasant 21°C (71°F). Expect a range from a cooler 8°C (47°F) to a warm 34°C (94°F). Be prepared for some rain, as 129 mm (5.1 in) of precipitation is expected over 11 days, contributing to an average humidity of 83%.

August Temperature in Madison

In August in Madison, the average temperature is 21°C (71°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 8°C (47°F). This makes it an ideal time for travelers seeking pleasant weather and a range of outdoor activities.

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

The chart illustrates August temperature patterns in Madison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Madison, August typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec151532425871747064473424
Data source: Temperature data for Madison 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 Madison

In Madison in August, the precipitation amount is 129 mm (5.1 in) spread over 11 days, indicating a wet period for the area.

August Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, 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 Madison, August typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec22195370998610112986842637
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Madison

In Madison in August humidity is 83%. With an average temperature of 21°C (71°F), this humidity feels like walking through a warm mist, making travel both refreshing and slightly uncomfortable as the air clings to your skin and you find yourself needing to take frequent breaks to hydrate.

August Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, 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 Madison is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Madison

In Madison 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 Madison.

Maximum UV Index Levels in Madison for August

The chart shows the monthly maximum UV Index (UVI) for Madison 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 Madison typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Madison 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 Madison Compares to Other Months

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

This table compares monthly weather conditions in Madison, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)22 mm (0.9 inches)85%moderate
February Weather-9°C (16°F)19 mm (0.7 inches)89%moderate
March Weather0°C (32°F)53 mm (2.1 inches)81%moderate
April Weather5°C (42°F)70 mm (2.7 inches)82%high
May Weather14°C (58°F)99 mm (3.9 inches)76%very high
June Weather22°C (72°F)86 mm (3.4 inches)81%very high
July Weather23°C (74°F)101 mm (4.0 inches)82%very high
August Weather21°C (71°F)129 mm (5.1 inches)83%very high
September Weather18°C (64°F)86 mm (3.4 inches)82%high
October Weather8°C (48°F)84 mm (3.3 inches)82%moderate
November Weather1°C (34°F)26 mm (1.0 inches)87%moderate
December Weather-4°C (24°F)37 mm (1.4 inches)84%low

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