September Weather in Keosauqua, United States

Last updated: June 24, 2025

In September, the average temperature in Keosauqua, United States is a pleasant 21°C (70°F), though it can swing from a chilly 6°C (43°F) to a warm 35°C (94°F). Be prepared for some rain, as the area receives around 119 mm (4.7 in) of precipitation over 7 days. With an average humidity of 78%, it’s a month that balances warmth with a touch of moisture in the air.

September Temperature in Keosauqua

In September in Keosauqua, the average temperature is 21°C (70°F). Maximums can reach 35°C (94°F), while minimums can drop as low as 6°C (43°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly!

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

The chart illustrates September temperature patterns in Keosauqua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keosauqua, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (94°F) and lows dropping to around 6°C (43°F).

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

September Precipitation in Keosauqua

In Keosauqua in September, the total precipitation amount is 119 mm (4.7 in) over a span of 7 days.

September Precipitation Trends in Keosauqua

The chart displays monthly precipitation patterns in Keosauqua, 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 Keosauqua, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Keosauqua

In Keosauqua in September, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

September Average Humidity in Keosauqua

This chart illustrates the average monthly humidity levels in Keosauqua, 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 Keosauqua is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Keosauqua

In Keosauqua 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 Keosauqua.

Maximum UV Index Levels in Keosauqua for September

The chart shows the monthly maximum UV Index (UVI) for Keosauqua 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 Keosauqua typically reaches 8, which falls under the very high exposure category.

Data source: Keosauqua 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 Keosauqua Compares to Other Months

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

This table compares monthly weather conditions in Keosauqua, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	53 mm (2.1 inches)	81%	moderate
February Weather	-2°C (28°F)	56 mm (2.2 inches)	81%	moderate
March Weather	5°C (42°F)	95 mm (3.7 inches)	81%	high
April Weather	10°C (51°F)	84 mm (3.3 inches)	82%	very high
May Weather	18°C (64°F)	160 mm (6.3 inches)	78%	very high
June Weather	24°C (76°F)	128 mm (5.1 inches)	81%	extreme
July Weather	26°C (79°F)	73 mm (2.9 inches)	79%	very high
August Weather	24°C (75°F)	78 mm (3.1 inches)	77%	very high
September Weather	21°C (70°F)	119 mm (4.7 inches)	78%	very high
October Weather	12°C (55°F)	124 mm (4.9 inches)	78%	high
November Weather	4°C (40°F)	50 mm (2.0 inches)	87%	moderate
December Weather	1°C (34°F)	41 mm (1.6 inches)	84%	low