Last updated: August 23, 2025
In Gye-sur-Seine, France, the average temperature in September hovers around 17°C (62°F). Expect a range that varies from a cool 3°C (38°F) to a warm 34°C (94°F). During this month, you can anticipate about 55 mm (2.2 in) of rainfall spread across 9 days. With an average humidity level of 78%, be prepared for a pleasantly mild atmosphere!
In September in Gye-sur-Seine, the average temperature is 17°C (62°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 3°C (38°F). Be prepared for a range of weather conditions when traveling during this month.
In Gye-sur-Seine in September, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.
In Gye-sur-Seine in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.
In Gye-sur-Seine 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 Gye-sur-Seine, you can refer to this Hourly UV Index in Gye-sur-Seine.
UV Risk Categories
Weather in Gye-sur-Seine varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gye-sur-Seine, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 94 mm (3.7 inches) | 91% | low |
| February Weather | 6°C (42°F) | 80 mm (3.1 inches) | 89% | moderate |
| March Weather | 8°C (46°F) | 89 mm (3.5 inches) | 86% | moderate |
| April Weather | 11°C (52°F) | 37 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (58°F) | 86 mm (3.4 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 76 mm (3.0 inches) | 82% | very high |
| July Weather | 21°C (69°F) | 60 mm (2.3 inches) | 79% | very high |
| August Weather | 20°C (69°F) | 48 mm (1.9 inches) | 72% | very high |
| September Weather | 17°C (62°F) | 55 mm (2.2 inches) | 78% | high |
| October Weather | 12°C (54°F) | 81 mm (3.2 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 78 mm (3.1 inches) | 91% | low |
| December Weather | 5°C (42°F) | 139 mm (5.5 inches) | 93% | low |