Last updated: June 24, 2025
In September, the average temperature in Indianola, United States is a pleasant 20°C (69°F). You can expect a minimum of 6°C (42°F) and a maximum of 33°C (92°F), offering a nice range for any outdoor activities. However, be prepared for some rain, as the area receives about 121 mm (4.8 in) of precipitation over 9 days. With an average humidity level of 73%, the weather is bound to feel quite refreshing!
In September in Indianola, the average temperature is 20°C (69°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 6°C (42°F). This variation in temperature makes it important for travelers to prepare for both warm days and cooler evenings.
In Indianola in September, the precipitation amount is 121 mm (4.8 in) over the course of 9 days.
In Indianola in September humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.
In Indianola 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 Indianola.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 42 mm (1.6 inches) | 78% | moderate |
| February Weather | -4°C (25°F) | 41 mm (1.6 inches) | 80% | moderate |
| March Weather | 5°C (41°F) | 85 mm (3.4 inches) | 77% | high |
| April Weather | 10°C (50°F) | 69 mm (2.7 inches) | 77% | very high |
| May Weather | 17°C (63°F) | 156 mm (6.2 inches) | 77% | very high |
| June Weather | 24°C (75°F) | 120 mm (4.7 inches) | 81% | extreme |
| July Weather | 25°C (78°F) | 71 mm (2.8 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 69 mm (2.7 inches) | 77% | very high |
| September Weather | 20°C (69°F) | 121 mm (4.8 inches) | 73% | very high |
| October Weather | 12°C (53°F) | 139 mm (5.5 inches) | 75% | high |
| November Weather | 4°C (39°F) | 47 mm (1.8 inches) | 85% | moderate |
| December Weather | 0°C (32°F) | 35 mm (1.4 inches) | 83% | moderate |