Last updated: August 23, 2025
In Marcillac-Vallon, France, the average temperature in September hovers around 16°C (62°F), making it a pleasant time to visit. Expect a minimum of 4°C (39°F) and a maximum of 30°C (87°F), providing a diverse range of weather for adventures. Be prepared for some rainfall, with an expected precipitation amount of 70 mm (2.7 in) spread over about 9 days. With an average humidity of 79%, the atmosphere can feel a bit sticky, so dress accordingly!
In September in Marcillac-Vallon, the average temperature is 16°C (62°F). The maximum can reach 30°C (87°F), and the minimum can be as low as 4°C (39°F). Be prepared for a range of weather conditions to make the most of your trip!
In Marcillac-Vallon in September, the precipitation amount is 70 mm (2.7 in) over the course of 9 days.
In Marcillac-Vallon in September, humidity is 79%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that makes walking outdoors feel languid and heavy, demanding frequent breaks and plenty of water as you navigate the bustling streets.
In Marcillac-Vallon 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 Marcillac-Vallon.
UV Risk Categories
Weather in Marcillac-Vallon varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Marcillac-Vallon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (39°F) | 99 mm (3.9 inches) | 90% | low |
| February Weather | 6°C (43°F) | 77 mm (3.0 inches) | 87% | moderate |
| March Weather | 8°C (46°F) | 104 mm (4.1 inches) | 85% | high |
| April Weather | 10°C (51°F) | 68 mm (2.7 inches) | 84% | high |
| May Weather | 14°C (57°F) | 116 mm (4.6 inches) | 84% | very high |
| June Weather | 18°C (65°F) | 123 mm (4.8 inches) | 82% | very high |
| July Weather | 20°C (69°F) | 63 mm (2.5 inches) | 79% | very high |
| August Weather | 20°C (69°F) | 69 mm (2.7 inches) | 75% | very high |
| September Weather | 16°C (62°F) | 70 mm (2.7 inches) | 79% | high |
| October Weather | 12°C (54°F) | 86 mm (3.4 inches) | 86% | moderate |
| November Weather | 7°C (46°F) | 101 mm (4.0 inches) | 90% | moderate |
| December Weather | 5°C (41°F) | 163 mm (6.4 inches) | 92% | low |