Last updated: August 23, 2025
In September, the average temperature in Saint-Genis-d'Hiersac, France hovers around 18°C (65°F), with variations that can dip to a cool 5°C (41°F) or soar to a warm 35°C (95°F). Expect rainfall totaling about 54 mm (2.1 in) over 9 days, while the air is comfortably humid with an average humidity of 79%.
In September in Saint-Genis-d'Hiersac, the average temperature is 18°C (65°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 5°C (41°F). This varied climate makes Saint-Genis-d'Hiersac an ideal destination for travelers seeking to experience both warm and mild weather during their trip.
In Saint-Genis-d'Hiersac in September, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.
In Saint-Genis-d'Hiersac in September, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.
In Saint-Genis-d'Hiersac 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 Saint-Genis-d'Hiersac, you can refer to this Hourly UV Index in Saint-Genis-d'Hiersac.
UV Risk Categories
Weather in Saint-Genis-d'Hiersac varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Saint-Genis-d'Hiersac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (42°F) | 70 mm (2.8 inches) | 90% | low |
| February Weather | 8°C (46°F) | 72 mm (2.8 inches) | 87% | moderate |
| March Weather | 10°C (50°F) | 89 mm (3.5 inches) | 85% | moderate |
| April Weather | 13°C (55°F) | 58 mm (2.3 inches) | 84% | high |
| May Weather | 16°C (61°F) | 100 mm (3.9 inches) | 84% | very high |
| June Weather | 20°C (68°F) | 89 mm (3.5 inches) | 82% | very high |
| July Weather | 22°C (71°F) | 46 mm (1.8 inches) | 79% | very high |
| August Weather | 21°C (70°F) | 32 mm (1.3 inches) | 75% | very high |
| September Weather | 18°C (65°F) | 54 mm (2.1 inches) | 79% | high |
| October Weather | 14°C (57°F) | 87 mm (3.4 inches) | 86% | moderate |
| November Weather | 9°C (48°F) | 84 mm (3.3 inches) | 90% | moderate |
| December Weather | 7°C (45°F) | 129 mm (5.1 inches) | 92% | low |