Last updated: August 23, 2025
In September, the average temperature in Bonny-sur-Loire, France hovers around 17°C (63°F), with fluctuating extremes ranging from a cool 4°C (40°F) to a warm 35°C (96°F). Expect 65 mm (2.6 in) of precipitation spread over 7 days, contributing to the region's average humidity of 78%.
In September in Bonny-sur-Loire, the average temperature is 17°C (63°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can drop as low as 4°C (40°F). This variability makes it essential for travelers to pack accordingly, ensuring comfort whether they encounter warm days or cool nights.
In Bonny-sur-Loire in September, the total precipitation amount is 65 mm (2.6 in) over a span of 7 days.
In Bonny-sur-Loire in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.
In Bonny-sur-Loire 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 Bonny-sur-Loire, you can refer to this Hourly UV Index in Bonny-sur-Loire.
UV Risk Categories
Weather in Bonny-sur-Loire varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bonny-sur-Loire, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 75 mm (3.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 65 mm (2.6 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 78 mm (3.1 inches) | 86% | moderate |
| April Weather | 11°C (53°F) | 40 mm (1.6 inches) | 84% | high |
| May Weather | 15°C (59°F) | 81 mm (3.2 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 69 mm (2.7 inches) | 82% | very high |
| July Weather | 21°C (70°F) | 49 mm (1.9 inches) | 79% | very high |
| August Weather | 20°C (69°F) | 47 mm (1.8 inches) | 72% | very high |
| September Weather | 17°C (63°F) | 65 mm (2.6 inches) | 78% | high |
| October Weather | 13°C (55°F) | 78 mm (3.1 inches) | 88% | moderate |
| November Weather | 8°C (46°F) | 70 mm (2.8 inches) | 91% | low |
| December Weather | 6°C (43°F) | 113 mm (4.5 inches) | 93% | low |