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September Weather in Davenport, United States

Last updated: June 24, 2025

In Davenport, United States, the average temperature in September hovers around 24°C (76°F). However, temperatures can swing from a cool 8°C (47°F) to a sweltering 38°C (101°F). Nature's touch comes with 87 mm (3.4 in) of precipitation over about 7 days, while the air carries a 64% humidity level, adding a hint of warmth to the ambiance.

September Temperature in Davenport

In September in Davenport, the average temperature is 24°C (76°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 8°C (47°F). Be prepared for warm days and cool evenings, making it ideal for both outdoor activities and cozy nights.

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

The chart illustrates September temperature patterns in Davenport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Davenport, September typically has an average temperature of 24°C (76°F), with highs reaching up to 38°C (101°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec394154597079838176625045
Data source: Temperature data for Davenport 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 Davenport

In Davenport in September, the precipitation amount is 87 mm (3.4 in) over a span of 7 days.

September Precipitation Trends in Davenport

The chart displays monthly precipitation patterns in Davenport, 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 Davenport, September typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec6357891561421069281871194136
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Davenport

In Davenport in September, humidity is 64%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable but still enjoyable, as you may find yourself yearning for a refreshing breeze or a quick dip in the water.

September Average Humidity in Davenport

This chart illustrates the average monthly humidity levels in Davenport, 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 Davenport is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Davenport

In Davenport in September, 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 Davenport.

Maximum UV Index Levels in Davenport for September

The chart shows the monthly maximum UV Index (UVI) for Davenport 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 Davenport typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109754
Data source: Davenport 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 Davenport Compares to Other Months

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

This table compares monthly weather conditions in Davenport, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)63 mm (2.5 inches)79%moderate
February Weather5°C (41°F)57 mm (2.2 inches)78%high
March Weather12°C (54°F)88 mm (3.5 inches)75%high
April Weather15°C (60°F)155 mm (6.1 inches)75%very high
May Weather21°C (70°F)142 mm (5.6 inches)83%very high
June Weather26°C (79°F)106 mm (4.2 inches)81%extreme
July Weather28°C (83°F)91 mm (3.6 inches)78%extreme
August Weather27°C (81°F)81 mm (3.2 inches)68%very high
September Weather24°C (76°F)87 mm (3.4 inches)64%very high
October Weather17°C (62°F)119 mm (4.7 inches)71%high
November Weather10°C (51°F)41 mm (1.6 inches)82%moderate
December Weather7°C (45°F)36 mm (1.4 inches)87%moderate

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