Last updated: August 23, 2025
In September, the average temperature in Montmirail, France is a pleasant 17°C (62°F). Expect a minimum of 5°C (41°F) and a maximum of 34°C (94°F), offering a range of experiences for both cool and warm weather enthusiasts. However, be prepared for some rain, as 57 mm (2.3 in) of precipitation typically falls over 8 days. Don’t forget to stay hydrated, as the average humidity sits at a comfortable 81%!
In September in Montmirail, the average temperature is 17°C (62°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 5°C (41°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for fluctuating temperatures.
In Montmirail in September, the precipitation amount is 57 mm (2.3 in) over a span of 8 days.
In Montmirail in September, humidity is 81%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making outdoor adventures feel sticky and requiring frequent breaks to stay comfortable while exploring.
In Montmirail 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 Montmirail, you can refer to this Hourly UV Index in Montmirail.
UV Risk Categories
Weather in Montmirail varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Montmirail, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 72 mm (2.8 inches) | 91% | low |
| February Weather | 6°C (42°F) | 72 mm (2.8 inches) | 89% | moderate |
| March Weather | 8°C (46°F) | 75 mm (2.9 inches) | 86% | moderate |
| April Weather | 11°C (52°F) | 34 mm (1.3 inches) | 84% | high |
| May Weather | 14°C (58°F) | 72 mm (2.8 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 62 mm (2.4 inches) | 82% | very high |
| July Weather | 21°C (70°F) | 59 mm (2.3 inches) | 80% | very high |
| August Weather | 20°C (69°F) | 52 mm (2.1 inches) | 76% | very high |
| September Weather | 17°C (62°F) | 57 mm (2.3 inches) | 81% | high |
| October Weather | 12°C (54°F) | 84 mm (3.3 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 69 mm (2.7 inches) | 92% | low |
| December Weather | 5°C (42°F) | 116 mm (4.6 inches) | 93% | low |