August Weather in Madison, United States

Last updated: June 24, 2025

In August, the average temperature in Madison, United States reaches a warm 27°C (80°F). Daytime highs can soar up to 36°C (97°F), while nights don’t drop below 18°C (64°F). Visitors can expect 121 mm (4.8 in) of rainfall spread across 11 days, with an average humidity of 74%, adding a tropical touch to the atmosphere.

August Temperature in Madison

In August in Madison, the average temperature is 27°C (80°F). Maximums can reach 36°C (97°F) and minimums can be as low as 18°C (64°F). It's an ideal time to visit for warm-weather activities while still enjoying cooler evenings.

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 36°C (97°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 total precipitation amount is 121 mm (4.8 in), which occurs over the course of 11 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 121 mm (4.8 inches) of precipitation spread over approximately 11 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 74%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

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 74%, 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	6°C (43°F)	107 mm (4.2 inches)	84%	moderate
February Weather	8°C (46°F)	164 mm (6.5 inches)	83%	high
March Weather	13°C (56°F)	164 mm (6.5 inches)	81%	very high
April Weather	16°C (62°F)	140 mm (5.5 inches)	81%	very high
May Weather	22°C (73°F)	153 mm (6.0 inches)	83%	extreme
June Weather	26°C (79°F)	107 mm (4.2 inches)	83%	extreme
July Weather	28°C (82°F)	125 mm (4.9 inches)	81%	extreme
August Weather	27°C (80°F)	121 mm (4.8 inches)	74%	very high
September Weather	25°C (77°F)	84 mm (3.3 inches)	71%	very high
October Weather	18°C (65°F)	125 mm (4.9 inches)	76%	high
November Weather	11°C (51°F)	77 mm (3.0 inches)	84%	moderate
December Weather	9°C (48°F)	155 mm (6.1 inches)	88%	moderate