Last updated: June 24, 2025
In September, the average temperature in Wonder Lake, United States hovers around 19°C (67°F), with a comfortable range from a chilly 3°C (38°F) to a warm 33°C (92°F). Be prepared for occasional rain, as the region receives about 91 mm (3.6 in) of precipitation over 10 days. Humidity levels linger around 79%, adding to the overall climate experience.
In September in Wonder Lake, the average temperature is 19°C (67°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). It's a good idea to pack layers and be prepared for both warm days and chilly nights while traveling.
In Wonder Lake in September, the precipitation amount totals 91 mm (3.6 in) over a span of 10 days.
In Wonder Lake in September, humidity is 79%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as the air is thick and can leave you feeling sluggish during outdoor adventures.
In Wonder Lake 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 Wonder Lake.
UV Risk Categories
Weather in Wonder Lake varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Wonder Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 61 mm (2.4 inches) | 85% | moderate |
| February Weather | -3°C (26°F) | 57 mm (2.2 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 65 mm (2.6 inches) | 85% | high |
| April Weather | 8°C (47°F) | 112 mm (4.4 inches) | 85% | very high |
| May Weather | 15°C (59°F) | 156 mm (6.1 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 108 mm (4.2 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 82 mm (3.2 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 84 mm (3.3 inches) | 76% | very high |
| September Weather | 19°C (67°F) | 91 mm (3.6 inches) | 79% | very high |
| October Weather | 12°C (53°F) | 118 mm (4.6 inches) | 83% | moderate |
| November Weather | 3°C (38°F) | 48 mm (1.9 inches) | 88% | moderate |
| December Weather | 0°C (32°F) | 53 mm (2.1 inches) | 81% | low |