Last updated: August 23, 2025
In September, the average temperature in Le Tremblay-sur-Mauldre, France hovers around 16°C (62°F), with a minimum dipping to 4°C (40°F) and a maximum soaring to 33°C (92°F). Expect about 50 mm (2.0 in) of precipitation spread across 9 days, and be prepared for an average humidity level of 76%.
In September in Le Tremblay-sur-Mauldre, the average temperature is 16°C (62°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 4°C (40°F). Therefore, travelers should prepare for a range of temperatures and pack accordingly for both warmer and cooler conditions.
In Le Tremblay-sur-Mauldre in September, the precipitation amount is 50 mm (2.0 in) over the course of 9 days.
In Le Tremblay-sur-Mauldre in September, humidity is 76%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that makes exploring the outdoors feel both refreshing and slightly muggy, urging travelers to take breaks often and enjoy the shade.
In Le Tremblay-sur-Mauldre 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 Tremblay-sur-Mauldre, you can refer to this Hourly UV Index in Le Tremblay-sur-Mauldre.
UV Risk Categories
Weather in Le Tremblay-sur-Mauldre varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Le Tremblay-sur-Mauldre, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 56 mm (2.2 inches) | 91% | low |
| February Weather | 6°C (43°F) | 66 mm (2.6 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 76 mm (3.0 inches) | 85% | moderate |
| April Weather | 11°C (52°F) | 37 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (58°F) | 80 mm (3.2 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 80 mm (3.2 inches) | 80% | very high |
| July Weather | 20°C (69°F) | 50 mm (2.0 inches) | 73% | very high |
| August Weather | 20°C (67°F) | 62 mm (2.4 inches) | 68% | very high |
| September Weather | 16°C (62°F) | 50 mm (2.0 inches) | 76% | high |
| October Weather | 12°C (55°F) | 79 mm (3.1 inches) | 88% | moderate |
| November Weather | 8°C (46°F) | 65 mm (2.5 inches) | 92% | low |
| December Weather | 6°C (43°F) | 101 mm (4.0 inches) | 93% | low |