Last updated: June 24, 2025
In Polk City, United States, the average temperature in September hovers around 20°C (69°F), making it a pleasant time to visit. Expect a range where the minimum dips to 4°C (40°F) and the maximum can soar up to 34°C (94°F). Precipitation averages 120 mm (4.7 in) over 10 days, while the ambiance is often accompanied by an average humidity of 73%. Be prepared for a mix of weather as you explore this charming destination!
In September in Polk City, the average temperature is 20°C (69°F). Maximums can reach 34°C (94°F), and minimums can be as low as 4°C (40°F). This makes it a great time to explore Polk City, as you'll experience mild weather with the potential for warm days and cooler nights.
In Polk City in September, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.
In Polk City 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 Polk City 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 Polk City.
UV Risk Categories
Weather in Polk City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Polk City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 37 mm (1.4 inches) | 78% | moderate |
| February Weather | -5°C (23°F) | 40 mm (1.6 inches) | 80% | moderate |
| March Weather | 4°C (40°F) | 81 mm (3.2 inches) | 77% | high |
| April Weather | 9°C (49°F) | 75 mm (2.9 inches) | 77% | very high |
| May Weather | 17°C (62°F) | 169 mm (6.7 inches) | 77% | very high |
| June Weather | 23°C (74°F) | 109 mm (4.3 inches) | 81% | extreme |
| July Weather | 25°C (77°F) | 76 mm (3.0 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 87 mm (3.4 inches) | 77% | very high |
| September Weather | 20°C (69°F) | 120 mm (4.7 inches) | 73% | very high |
| October Weather | 11°C (53°F) | 128 mm (5.0 inches) | 75% | high |
| November Weather | 3°C (39°F) | 39 mm (1.5 inches) | 85% | moderate |
| December Weather | -1°C (31°F) | 37 mm (1.5 inches) | 83% | moderate |