September Weather in Fossoy, France

Last updated: August 23, 2025

In September, the average temperature in Fossoy, France hovers around a pleasant 16°C (62°F). Expect a temperature range that can dip to a minimum of 5°C (41°F) and soar to a maximum of 34°C (93°F). This month sees 61 mm (2.4 in) of precipitation spread over about 8 days, contributing to an average humidity of 81%.

September Temperature in Fossoy

In September in Fossoy, the average temperature is 16°C (62°F). Maximums can reach 34°C (93°F), while minimums can be as low as 5°C (41°F). Expect a range of warm and cool conditions, so pack accordingly for your travels.

September Weather in Fossoy: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fossoy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fossoy, September typically has an average temperature of 16°C (62°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Fossoy generated using information from the Copernicus Climate Change Service.

September Precipitation in Fossoy

In Fossoy in September, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

September Precipitation Trends in Fossoy

The chart displays monthly precipitation patterns in Fossoy, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Fossoy, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Fossoy

In Fossoy in September, humidity is 81%. With an average temperature of 16°C (62°F), this humidity feels like a warm embrace that can quickly leave travelers feeling sticky and drained, making outdoor adventures a bit challenging unless they stay properly hydrated and take breaks in the shade.

September Average Humidity in Fossoy

This chart illustrates the average monthly humidity levels in Fossoy, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Fossoy is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fossoy

In Fossoy 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 Fossoy, you can refer to this Hourly UV Index in Fossoy.

Maximum UV Index Levels in Fossoy for September

The chart shows the monthly maximum UV Index (UVI) for Fossoy in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Fossoy typically reaches 6, which falls under the high exposure category.

Data source: Fossoy September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Fossoy Compares to Other Months

Weather in Fossoy varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Fossoy, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Fossoy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	73 mm (2.9 inches)	91%	low
February Weather	6°C (42°F)	75 mm (3.0 inches)	89%	moderate
March Weather	8°C (46°F)	74 mm (2.9 inches)	86%	moderate
April Weather	11°C (51°F)	37 mm (1.4 inches)	84%	high
May Weather	14°C (58°F)	71 mm (2.8 inches)	82%	very high
June Weather	19°C (66°F)	63 mm (2.5 inches)	82%	very high
July Weather	20°C (69°F)	60 mm (2.4 inches)	80%	very high
August Weather	20°C (68°F)	63 mm (2.5 inches)	76%	very high
September Weather	16°C (62°F)	61 mm (2.4 inches)	81%	high
October Weather	12°C (54°F)	87 mm (3.4 inches)	88%	moderate
November Weather	7°C (45°F)	71 mm (2.8 inches)	92%	low
December Weather	5°C (42°F)	116 mm (4.6 inches)	93%	low