Last updated: August 23, 2025
In Castelnau-de-Mandailles, France, the average temperature in September is a comfortable 15°C (59°F), with variations ranging from a cool 2°C (36°F) to a warm 29°C (84°F). Expect 55 mm (2.2 in) of precipitation over about 9 days, contributing to an average humidity level of 72%. Whether you're exploring or relaxing, this month's weather offers a delightful mix of conditions!
In September in Castelnau-de-Mandailles, the average temperature is 15°C (59°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 2°C (36°F). This variability in temperature makes it essential for travelers to pack layers to comfortably enjoy their stay.
In Castelnau-de-Mandailles in September, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.
In Castelnau-de-Mandailles in September humidity is 72%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket wrapping around you, creating a sultry atmosphere that can make traveling a bit uncomfortable. The stickiness in the air can leave you feeling sluggish, so it’s advisable to stay hydrated and take breaks often while exploring.
In Castelnau-de-Mandailles in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Castelnau-de-Mandailles.
UV Risk Categories
Weather in Castelnau-de-Mandailles varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Castelnau-de-Mandailles, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 94 mm (3.7 inches) | 91% | low |
| February Weather | 4°C (40°F) | 69 mm (2.7 inches) | 88% | moderate |
| March Weather | 6°C (43°F) | 103 mm (4.0 inches) | 84% | high |
| April Weather | 9°C (48°F) | 78 mm (3.1 inches) | 81% | high |
| May Weather | 12°C (54°F) | 110 mm (4.3 inches) | 77% | very high |
| June Weather | 16°C (62°F) | 119 mm (4.7 inches) | 76% | very high |
| July Weather | 19°C (66°F) | 56 mm (2.2 inches) | 68% | very high |
| August Weather | 19°C (66°F) | 60 mm (2.4 inches) | 61% | very high |
| September Weather | 15°C (59°F) | 55 mm (2.2 inches) | 72% | high |
| October Weather | 10°C (51°F) | 87 mm (3.4 inches) | 88% | moderate |
| November Weather | 6°C (43°F) | 100 mm (4.0 inches) | 91% | moderate |
| December Weather | 3°C (38°F) | 155 mm (6.1 inches) | 92% | low |