Last updated: August 23, 2025
In Ormesson-sur-Marne, France, the average temperature for September hovers around 17°C (63°F), with a minimum dipping to 4°C (40°F) and a maximum soaring to 34°C (93°F). Expect around 51 mm (2.0 in) of precipitation over approximately 9 days and a comfortable average humidity of 76%.
In September, in Ormesson-sur-Marne, the average temperature is 17°C (63°F), with maximums reaching 34°C (93°F) and minimums dropping to 4°C (40°F). This weather makes it a great time for travelers to enjoy outdoor activities while being prepared for varying temperatures.
In Ormesson-sur-Marne in September, the total precipitation amount is 51 mm (2.0 in) spread over 9 days.
In Ormesson-sur-Marne in September humidity is 76%. With an average temperature of 17°C (63°F), this humidity feels like traveling through a warm, enveloping blanket, making every outdoor adventure feel sticky and heavy, yet pleasantly refreshing when you find a cool breeze.
In Ormesson-sur-Marne 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 Ormesson-sur-Marne, you can refer to this Hourly UV Index in Ormesson-sur-Marne.
UV Risk Categories
Weather in Ormesson-sur-Marne varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ormesson-sur-Marne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 60 mm (2.3 inches) | 91% | low |
| February Weather | 6°C (43°F) | 68 mm (2.7 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 73 mm (2.9 inches) | 85% | moderate |
| April Weather | 11°C (52°F) | 31 mm (1.2 inches) | 84% | high |
| May Weather | 14°C (58°F) | 72 mm (2.8 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 68 mm (2.7 inches) | 80% | very high |
| July Weather | 21°C (70°F) | 52 mm (2.0 inches) | 73% | very high |
| August Weather | 20°C (68°F) | 58 mm (2.3 inches) | 68% | very high |
| September Weather | 17°C (63°F) | 51 mm (2.0 inches) | 76% | high |
| October Weather | 13°C (55°F) | 81 mm (3.2 inches) | 88% | moderate |
| November Weather | 8°C (46°F) | 66 mm (2.6 inches) | 92% | low |
| December Weather | 6°C (43°F) | 106 mm (4.2 inches) | 93% | low |