Last updated: August 23, 2025
In Feissons-sur-Isere, France, the average temperature for September is a cool 10°C (50°F). Expect a range of temperatures, with a minimum dropping to -10°C (15°F) and a maximum reaching 22°C (72°F). During this month, precipitation averages about 94 mm (3.7 in) over 14 days, coupled with an average humidity of 73%. Get ready for a month of varied weather!
In September in Feissons-sur-Isere, the average temperature is 10°C (50°F), with maximums reaching up to 22°C (72°F) and minimums dropping as low as -10°C (15°F). Travelers should be prepared for a wide range of temperatures, so layering clothing is advisable for comfort during their visit.
In Feissons-sur-Isere in September, the precipitation amount is 94 mm (3.7 in) recorded over the course of 14 days.
In Feissons-sur-Isere in September, humidity is 73%. With an average temperature of 10°C (50°F), this humidity feels like a chilly, damp embrace, making it essential to layer your clothing while traveling, as the moisture in the air can quickly chill you to the bone.
In Feissons-sur-Isere 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 Feissons-sur-Isere.
UV Risk Categories
Weather in Feissons-sur-Isere varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Feissons-sur-Isere, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 154 mm (6.0 inches) | 91% | moderate |
| February Weather | -2°C (28°F) | 120 mm (4.7 inches) | 87% | moderate |
| March Weather | 0°C (32°F) | 158 mm (6.2 inches) | 84% | high |
| April Weather | 3°C (38°F) | 83 mm (3.3 inches) | 83% | very high |
| May Weather | 7°C (45°F) | 194 mm (7.6 inches) | 78% | very high |
| June Weather | 12°C (54°F) | 161 mm (6.3 inches) | 75% | very high |
| July Weather | 14°C (58°F) | 124 mm (4.9 inches) | 72% | very high |
| August Weather | 14°C (57°F) | 119 mm (4.7 inches) | 63% | very high |
| September Weather | 10°C (50°F) | 94 mm (3.7 inches) | 73% | high |
| October Weather | 6°C (43°F) | 115 mm (4.5 inches) | 89% | moderate |
| November Weather | 0°C (32°F) | 115 mm (4.5 inches) | 90% | moderate |
| December Weather | -5°C (24°F) | 261 mm (10.3 inches) | 90% | low |