September Weather in Algona, United States

Last updated: June 24, 2025

In Algona, United States, the average temperature in September hovers around 19°C (66°F). Daily temperatures can vary significantly, with a minimum of 3°C (38°F) and a maximum soaring to 34°C (93°F). Expect about 115 mm (4.5 in) of precipitation over approximately 10 days during this month, contributing to an average humidity level of 75%.

September Temperature in Algona

In September in Algona, the average temperature is 19°C (66°F). Maximums can reach 34°C (93°F), while minimums can dip to as low as 3°C (38°F). This variability makes Algona a great destination for travelers who enjoy diverse weather experiences.

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

The chart illustrates September temperature patterns in Algona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Algona, September typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Algona

In Algona in September, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.

September Precipitation Trends in Algona

The chart displays monthly precipitation patterns in Algona, 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 Algona, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Algona

In Algona in September humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

September Average Humidity in Algona

This chart illustrates the average monthly humidity levels in Algona, 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 Algona is approximately 75%, 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 Algona

In Algona 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 Algona.

Maximum UV Index Levels in Algona for September

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

Data source: Algona 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 Algona Compares to Other Months

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

This table compares monthly weather conditions in Algona, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	31 mm (1.2 inches)	82%	moderate
February Weather	-7°C (19°F)	47 mm (1.8 inches)	84%	moderate
March Weather	2°C (36°F)	75 mm (2.9 inches)	80%	moderate
April Weather	8°C (46°F)	85 mm (3.4 inches)	81%	very high
May Weather	16°C (61°F)	155 mm (6.1 inches)	74%	very high
June Weather	23°C (73°F)	118 mm (4.6 inches)	80%	extreme
July Weather	24°C (75°F)	93 mm (3.7 inches)	80%	very high
August Weather	22°C (72°F)	119 mm (4.7 inches)	77%	very high
September Weather	19°C (66°F)	115 mm (4.5 inches)	75%	very high
October Weather	10°C (50°F)	106 mm (4.2 inches)	80%	moderate
November Weather	2°C (36°F)	41 mm (1.6 inches)	87%	moderate
December Weather	-3°C (28°F)	40 mm (1.6 inches)	83%	moderate