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September Weather in Fountain City, United States

Last updated: June 24, 2025

In September, the average temperature in Fountain City, United States hovers around 20°C (69°F). Expect a minimum of 4°C (40°F) and occasional highs of 33°C (91°F). During this month, precipitation totals approximately 91 mm (3.6 in) over 7 days, while the average humidity tends to be around 69%.

September Temperature in Fountain City

In September in Fountain City, the average temperature is 20°C (69°F). Maximum temperatures can reach 33°C (91°F), while minimum temperatures can drop as low as 4°C (40°F). This range of temperatures makes Fountain City a great destination for outdoor activities and versatile wardrobe choices during your travels.

September Weather in Fountain City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fountain City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fountain City, September typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec293342516372757368574135
Data source: Temperature data for Fountain City 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.

September Precipitation in Fountain City

In Fountain City in September, the precipitation amount is 91 mm (3.6 in) over a span of 7 days.

September Precipitation Trends in Fountain City

The chart displays monthly precipitation patterns in Fountain City, 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 Fountain City, September typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec76971161021421251099591989181
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fountain City

In Fountain City in September humidity is 69%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping embrace, making travel feel both refreshing and slightly sticky, as you navigate the vibrant atmosphere with a pleasant sheen of perspiration glistening on your skin.

September Average Humidity in Fountain City

This chart illustrates the average monthly humidity levels in Fountain City, 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 Fountain City 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 Fountain City

In Fountain City 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 Fountain City.

Maximum UV Index Levels in Fountain City for September

The chart shows the monthly maximum UV Index (UVI) for Fountain City 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 Fountain City typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Fountain City 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 Fountain City Compares to Other Months

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

This table compares monthly weather conditions in Fountain City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)76 mm (3.0 inches)87%moderate
February Weather0°C (33°F)97 mm (3.8 inches)85%moderate
March Weather5°C (42°F)116 mm (4.6 inches)86%high
April Weather11°C (51°F)102 mm (4.0 inches)84%very high
May Weather17°C (63°F)142 mm (5.6 inches)79%very high
June Weather22°C (72°F)125 mm (4.9 inches)82%extreme
July Weather24°C (76°F)109 mm (4.3 inches)79%very high
August Weather23°C (73°F)95 mm (3.7 inches)70%very high
September Weather20°C (69°F)91 mm (3.6 inches)69%very high
October Weather14°C (57°F)98 mm (3.9 inches)76%high
November Weather5°C (41°F)91 mm (3.6 inches)88%moderate
December Weather2°C (36°F)81 mm (3.2 inches)87%moderate

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