Last updated: June 24, 2025
In Butte des Morts, United States, the average temperature in September hovers around 18°C (64°F). Expect a comfortable range where the minimum can dip to 3°C (38°F) and the maximum can reach up to 32°C (90°F). During this month, precipitation averages 83 mm (3.3 in) over 11 days, coupled with an average humidity of 79%. It's a month where mild weather meets occasional showers, making it a great time to explore!
In September in Butte des Morts, the average temperature is 18°C (64°F), with maximums reaching up to 32°C (90°F) and minimums dipping down to 3°C (38°F). This wide temperature range makes it advisable for travelers to pack for both warm days and cooler nights.
In Butte des Morts in September, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.
In Butte des Morts in September, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.
In Butte des Morts in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Butte des Morts.
UV Risk Categories
Weather in Butte des Morts varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Butte des Morts, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 43 mm (1.7 inches) | 85% | moderate |
| February Weather | -6°C (21°F) | 48 mm (1.9 inches) | 85% | moderate |
| March Weather | 1°C (33°F) | 60 mm (2.4 inches) | 85% | moderate |
| April Weather | 6°C (44°F) | 95 mm (3.8 inches) | 85% | very high |
| May Weather | 14°C (58°F) | 107 mm (4.2 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 104 mm (4.1 inches) | 80% | very high |
| July Weather | 23°C (74°F) | 112 mm (4.4 inches) | 78% | very high |
| August Weather | 22°C (71°F) | 104 mm (4.1 inches) | 76% | very high |
| September Weather | 18°C (64°F) | 83 mm (3.3 inches) | 79% | high |
| October Weather | 10°C (51°F) | 98 mm (3.9 inches) | 83% | moderate |
| November Weather | 2°C (36°F) | 47 mm (1.9 inches) | 88% | moderate |
| December Weather | -3°C (28°F) | 49 mm (1.9 inches) | 81% | low |