August Weather in Madison, United States

Last updated: June 24, 2025

In Madison, United States, the average temperature in August hovers at a warm 27°C (80°F). Expect a comfortable low of 18°C (64°F), with the mercury soaring to a high of 37°C (99°F). Be prepared for 108 mm (4.3 in) of rainfall spread over 15 days, and keep in mind the average humidity level is a balmy 81%.

August Temperature in Madison

In August in Madison, the average temperature is 27°C (80°F). Maximum temperatures can reach 37°C (99°F), while the minimum can drop to as low as 18°C (64°F). This pleasant warmth makes Madison an ideal destination for travelers seeking a comfortable climate.

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 27°C (80°F), with highs reaching up to 37°C (99°F) and lows dropping to around 18°C (64°F).

Data source: Temperature data for Madison generated using information from the Copernicus Climate Change Service.

August Precipitation in Madison

In Madison in August, the precipitation amount is 108 mm (4.3 in) over the course of 15 days.

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 108 mm (4.3 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Madison

In Madison in August, humidity is 81%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapping around you, making travel feel sticky and heavy, but the vibrant atmosphere can still be invigorating, inviting moments of exploration in slower, more deliberate steps.

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 81%, offering insight into how humid the weather typically is during this month.

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 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 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 10, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	103 mm (4.0 inches)	86%	moderate
February Weather	12°C (53°F)	125 mm (4.9 inches)	84%	high
March Weather	14°C (58°F)	96 mm (3.8 inches)	83%	very high
April Weather	18°C (64°F)	104 mm (4.1 inches)	81%	very high
May Weather	23°C (73°F)	99 mm (3.9 inches)	81%	extreme
June Weather	25°C (78°F)	109 mm (4.3 inches)	81%	extreme
July Weather	27°C (81°F)	108 mm (4.2 inches)	83%	extreme
August Weather	27°C (80°F)	108 mm (4.3 inches)	81%	very high
September Weather	25°C (77°F)	109 mm (4.3 inches)	82%	very high
October Weather	20°C (68°F)	107 mm (4.2 inches)	78%	very high
November Weather	12°C (54°F)	80 mm (3.2 inches)	86%	high
December Weather	10°C (50°F)	133 mm (5.3 inches)	89%	moderate