Last updated: August 23, 2025
In La Chapelle-Montreuil, France, the average temperature in September is a comfortable 18°C (64°F), with daily temperatures ranging from a chilly 6°C (43°F) to a warm 34°C (94°F). Expect about 36 mm (1.4 in) of precipitation over 8 days, and enjoy the moderate 76% humidity that enhances the overall atmosphere.
In September in La Chapelle-Montreuil, the average temperature is 18°C (64°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This variation in temperature makes it an ideal time for travelers to pack both light clothing for daytime excursions and warmer layers for cooler evenings.
In La Chapelle-Montreuil in September, the precipitation amount is 36 mm (1.4 in) over a period of 8 days.
In La Chapelle-Montreuil in September, humidity is 76%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel steamy and invigorating—perfect for exploring charming streets, though you might want to take breaks in the shade.
In La Chapelle-Montreuil 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 La Chapelle-Montreuil, you can refer to this Hourly UV Index in La Chapelle-Montreuil.
UV Risk Categories
Weather in La Chapelle-Montreuil varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in La Chapelle-Montreuil, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 54 mm (2.1 inches) | 90% | low |
| February Weather | 7°C (45°F) | 66 mm (2.6 inches) | 88% | moderate |
| March Weather | 9°C (48°F) | 81 mm (3.2 inches) | 85% | moderate |
| April Weather | 12°C (53°F) | 56 mm (2.2 inches) | 83% | high |
| May Weather | 15°C (59°F) | 83 mm (3.3 inches) | 83% | very high |
| June Weather | 19°C (66°F) | 85 mm (3.4 inches) | 79% | very high |
| July Weather | 21°C (70°F) | 32 mm (1.2 inches) | 71% | very high |
| August Weather | 20°C (69°F) | 28 mm (1.1 inches) | 68% | very high |
| September Weather | 18°C (64°F) | 36 mm (1.4 inches) | 76% | high |
| October Weather | 13°C (56°F) | 87 mm (3.4 inches) | 87% | moderate |
| November Weather | 8°C (47°F) | 90 mm (3.5 inches) | 91% | moderate |
| December Weather | 7°C (44°F) | 99 mm (3.9 inches) | 93% | low |