Last updated: August 23, 2025
In Mezieres-sur-Oise, France, the average temperature in September is a pleasant 16°C (61°F), with a minimum of 4°C (40°F) and a maximum of 33°C (92°F). During this month, expect an average precipitation of 50 mm (2.0 in) spread over 9 days, coupled with a high average humidity of 81%. Plan accordingly to enjoy the unique atmosphere this month has to offer!
In September in Mezieres-sur-Oise, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 4°C (40°F). Be prepared for a wide range of temperatures when traveling during this month.
In Mezieres-sur-Oise in September, the precipitation amount is 50 mm (2.0 in) over the course of 9 days.
In Mezieres-sur-Oise in September, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.
In Mezieres-sur-Oise 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 Mezieres-sur-Oise, you can refer to this Hourly UV Index in Mezieres-sur-Oise.
UV Risk Categories
Weather in Mezieres-sur-Oise varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mezieres-sur-Oise, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 70 mm (2.8 inches) | 91% | low |
| February Weather | 5°C (42°F) | 78 mm (3.1 inches) | 89% | moderate |
| March Weather | 7°C (46°F) | 78 mm (3.1 inches) | 86% | moderate |
| April Weather | 10°C (51°F) | 39 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (57°F) | 60 mm (2.4 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 57 mm (2.3 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 54 mm (2.1 inches) | 80% | very high |
| August Weather | 19°C (67°F) | 74 mm (2.9 inches) | 76% | very high |
| September Weather | 16°C (61°F) | 50 mm (2.0 inches) | 81% | high |
| October Weather | 12°C (54°F) | 85 mm (3.4 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 69 mm (2.7 inches) | 92% | low |
| December Weather | 5°C (42°F) | 114 mm (4.5 inches) | 93% | low |