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September Weather in Indianola, United States

Last updated: June 24, 2025

In Indianola, United States, the average temperature in September hovers around 21°C (69°F), offering a pleasant climate. However, be prepared for temperature fluctuations, as it can dip to a brisk 3°C (38°F) or rise to a sweltering 37°C (98°F). Rainfall is moderate with an average precipitation of 63 mm (2.5 in) spread over 5 days, while the average humidity stands at a comfortable 70%.

September Temperature in Indianola

In September in Indianola, the average temperature is 21°C (69°F). Maximums can reach 37°C (98°F), while minimums can drop as low as 3°C (38°F). Pack accordingly, as the weather can vary significantly during your travels.

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

The chart illustrates September temperature patterns in Indianola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Indianola, September typically has an average temperature of 21°C (69°F), with highs reaching up to 37°C (98°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec292842506175787569524233
Data source: Temperature data for Indianola 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 Indianola

In Indianola in September, the precipitation amount is 63 mm (2.5 in) spread over a period of 5 days.

September Precipitation Trends in Indianola

The chart displays monthly precipitation patterns in Indianola, 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 Indianola, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1918683813357706663521526
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Indianola

In Indianola in September, humidity is 70%. With an average temperature of 21°C (69°F), this humidity feels like a warm blanket that envelops you as you travel, making you feel sticky and a bit lethargic, yet it adds a certain tropical charm to your adventures.

September Average Humidity in Indianola

This chart illustrates the average monthly humidity levels in Indianola, 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 Indianola is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Indianola

In Indianola 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 Indianola.

Maximum UV Index Levels in Indianola for September

The chart shows the monthly maximum UV Index (UVI) for Indianola 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 Indianola typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Indianola 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 Indianola Compares to Other Months

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

This table compares monthly weather conditions in Indianola, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)18 mm (0.7 inches)73%moderate
February Weather-2°C (29°F)18 mm (0.7 inches)80%moderate
March Weather5°C (42°F)68 mm (2.7 inches)64%high
April Weather10°C (50°F)38 mm (1.5 inches)64%very high
May Weather16°C (61°F)133 mm (5.3 inches)76%very high
June Weather24°C (75°F)57 mm (2.2 inches)79%extreme
July Weather26°C (78°F)70 mm (2.7 inches)77%extreme
August Weather24°C (75°F)66 mm (2.6 inches)79%very high
September Weather21°C (69°F)63 mm (2.5 inches)70%very high
October Weather11°C (52°F)52 mm (2.0 inches)64%high
November Weather5°C (42°F)15 mm (0.6 inches)75%moderate
December Weather1°C (33°F)26 mm (1.0 inches)78%moderate

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