Last updated: June 24, 2025
In September, the average temperature in Marion, United States hovers around 23°C (74°F), providing a delightful climate for exploration. Visitors can expect minimum temperatures dipping to 9°C (48°F) and occasional maxima reaching up to 36°C (97°F). With an average precipitation of 88 mm (3.5 in) spread over 7 days, be prepared for some refreshing rain. The air carries a 75% humidity level, adding a touch of tropical warmth to your adventures!
In September in Marion, the average temperature is 23°C (74°F). Maximums can reach 36°C (97°F) while minimums can drop to as low as 9°C (48°F). This varied climate makes Marion an ideal destination for travelers seeking both warmth and cooler moments throughout the day.
In Marion in September, the precipitation amount is 88 mm (3.5 in) over a span of 7 days.
In Marion in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.
In Marion 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 Marion.
UV Risk Categories
Weather in Marion varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Marion, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 99 mm (3.9 inches) | 86% | moderate |
| February Weather | 5°C (41°F) | 142 mm (5.6 inches) | 84% | high |
| March Weather | 10°C (50°F) | 130 mm (5.1 inches) | 84% | high |
| April Weather | 14°C (58°F) | 137 mm (5.4 inches) | 80% | very high |
| May Weather | 21°C (69°F) | 116 mm (4.6 inches) | 82% | extreme |
| June Weather | 25°C (77°F) | 119 mm (4.7 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 96 mm (3.8 inches) | 79% | very high |
| August Weather | 25°C (78°F) | 92 mm (3.6 inches) | 76% | very high |
| September Weather | 23°C (74°F) | 88 mm (3.5 inches) | 75% | very high |
| October Weather | 17°C (62°F) | 110 mm (4.3 inches) | 74% | high |
| November Weather | 8°C (47°F) | 91 mm (3.6 inches) | 85% | moderate |
| December Weather | 6°C (43°F) | 106 mm (4.2 inches) | 88% | moderate |