Last updated: August 23, 2025
In Le Plessis-Brion, France, the average temperature in September hovers around 16°C (62°F). Expect temperatures to vary from a chilly 5°C (40°F) to a warm 33°C (92°F). This month also brings about 42 mm (1.6 in) of precipitation over approximately 8 days, with an average humidity level of 81%—perfect for those who enjoy a lush, vibrant atmosphere!
In September in Le Plessis-Brion, the average temperature is 16°C (62°F), with a maximum reaching 33°C (92°F) and a minimum dipping as low as 5°C (40°F). This range makes it a perfect time for travelers to enjoy a variety of outdoor activities while being prepared for both warm and cooler evenings.
In Le Plessis-Brion in September, the precipitation amount is 42 mm (1.6 in) over a span of 8 days.
In Le Plessis-Brion in September, humidity is 81%. With an average temperature of 16°C (62°F), this humidity feels like a warm embrace that can quickly leave travelers feeling sticky and drained, making outdoor adventures a bit challenging unless they stay properly hydrated and take breaks in the shade.
In Le Plessis-Brion in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Le Plessis-Brion, you can refer to this Hourly UV Index in Le Plessis-Brion.
UV Risk Categories
Weather in Le Plessis-Brion varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Le Plessis-Brion, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 65 mm (2.5 inches) | 91% | low |
| February Weather | 6°C (43°F) | 69 mm (2.7 inches) | 89% | moderate |
| March Weather | 8°C (46°F) | 70 mm (2.7 inches) | 86% | moderate |
| April Weather | 11°C (51°F) | 34 mm (1.3 inches) | 84% | high |
| May Weather | 14°C (58°F) | 63 mm (2.5 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 58 mm (2.3 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 52 mm (2.1 inches) | 80% | very high |
| August Weather | 19°C (67°F) | 69 mm (2.7 inches) | 76% | very high |
| September Weather | 16°C (62°F) | 42 mm (1.6 inches) | 81% | high |
| October Weather | 12°C (55°F) | 78 mm (3.1 inches) | 88% | moderate |
| November Weather | 7°C (46°F) | 67 mm (2.6 inches) | 92% | low |
| December Weather | 6°C (43°F) | 103 mm (4.0 inches) | 93% | low |