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September Weather in Estherville, United States

Last updated: June 24, 2025

In Estherville, United States, the average temperature for September hovers around 18°C (65°F), offering a pleasant climate. You can expect a range from a cool 3°C (38°F) at night to a warm 33°C (91°F) during the day. Rainfall averages 111 mm (4.4 in) across 9 days, contributing to an average humidity level of 75%. Perfect for enjoying the lush scenery this time of year!

September Temperature in Estherville

In September in Estherville, the average temperature is 18°C (65°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as 3°C (38°F). This climate makes Estherville a great destination for travelers seeking a mix of warm days and cool evenings.

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

The chart illustrates September temperature patterns in Estherville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Estherville, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (91°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec181734455972747165493526
Data source: Temperature data for Estherville 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 Estherville

In Estherville in September, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

September Precipitation Trends in Estherville

The chart displays monthly precipitation patterns in Estherville, 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 Estherville, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec3338719414212499114111943343
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Estherville

In Estherville in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Estherville

This chart illustrates the average monthly humidity levels in Estherville, 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 Estherville is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Estherville

In Estherville 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 Estherville.

Maximum UV Index Levels in Estherville for September

The chart shows the monthly maximum UV Index (UVI) for Estherville 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 Estherville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098533
Data source: Estherville 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 Estherville Compares to Other Months

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

This table compares monthly weather conditions in Estherville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)33 mm (1.3 inches)82%moderate
February Weather-8°C (18°F)38 mm (1.5 inches)84%moderate
March Weather1°C (34°F)71 mm (2.8 inches)80%moderate
April Weather7°C (45°F)94 mm (3.7 inches)81%very high
May Weather15°C (60°F)142 mm (5.6 inches)74%very high
June Weather22°C (72°F)124 mm (4.9 inches)80%very high
July Weather23°C (74°F)99 mm (3.9 inches)80%very high
August Weather21°C (71°F)114 mm (4.5 inches)77%very high
September Weather18°C (65°F)111 mm (4.4 inches)75%very high
October Weather9°C (49°F)94 mm (3.7 inches)80%moderate
November Weather1°C (35°F)33 mm (1.3 inches)87%moderate
December Weather-3°C (26°F)43 mm (1.7 inches)83%moderate

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