nomadseason

September Weather in Madison, United States

Last updated: June 24, 2025

In September, the average temperature in Madison, United States is a pleasant 22°C (71°F). However, be prepared for temperature fluctuations, as it can dip to a cool 7°C (46°F) or soar to a sizzling 35°C (95°F). You can expect 97 mm (3.8 in) of precipitation spread over about 8 days, with an average humidity of 69%. Stay prepared for a mix of warm sunshine and refreshing rain!

September Temperature in Madison

In September in Madison, the average temperature is 22°C (71°F). The maximum can reach 35°C (95°F), while the minimum can be as low as 7°C (46°F). This makes Madison a great destination for travelers seeking a variety of weather experiences, from warm days to cooler evenings.

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

The chart illustrates September 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, September typically has an average temperature of 22°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec343846556774787671604440
Data source: Temperature data for Madison generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Madison

In Madison in September, the total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 days.

September Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Madison, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8511913713412314299939710096106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Madison

In Madison in September humidity is 69%. With an average temperature of 22°C (71°F), this humidity feels like walking through a warm embrace, making travel slightly uncomfortable yet refreshing, as the air clings to your skin and adds a layer of warmth to your exploration.

September Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Madison is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Madison

In Madison in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Madison.

Maximum UV Index Levels in Madison for September

The chart shows the monthly maximum UV Index (UVI) for Madison in September, 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 September, the maximum UV index in Madison typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Madison September 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 September 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 September’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 September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)85 mm (3.4 inches)87%moderate
February Weather3°C (38°F)119 mm (4.7 inches)85%moderate
March Weather8°C (47°F)137 mm (5.4 inches)86%high
April Weather13°C (55°F)134 mm (5.3 inches)84%very high
May Weather19°C (67°F)123 mm (4.9 inches)79%very high
June Weather24°C (75°F)142 mm (5.6 inches)82%extreme
July Weather25°C (78°F)99 mm (3.9 inches)79%very high
August Weather24°C (76°F)93 mm (3.7 inches)70%very high
September Weather22°C (71°F)97 mm (3.8 inches)69%very high
October Weather15°C (60°F)100 mm (3.9 inches)76%high
November Weather7°C (45°F)96 mm (3.8 inches)88%moderate
December Weather4°C (40°F)106 mm (4.2 inches)87%moderate

Compare Madison's Climate with Cities Worldwide