September Weather in Rethel, France

Last updated: August 23, 2025

In September, the average temperature in Rethel, France hovers around 16°C (61°F), with a range that can dip to a chilly 4°C (40°F) and soar to a warm 35°C (95°F). Expect about 57 mm (2.3 in) of precipitation spread over 8 days, contributing to an average humidity of 81%. Embrace the variety that this month brings!

September Temperature in Rethel

In September in Rethel, the average temperature is 16°C (61°F). Maximums can reach 35°C (95°F), and minimums can be as low as 4°C (40°F). Be prepared for a wide range of temperatures when traveling to Rethel this month.

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

The chart illustrates September temperature patterns in Rethel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rethel, September typically has an average temperature of 16°C (61°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Rethel

In Rethel in September, the precipitation amount is 57 mm (2.3 in) over a span of 8 days.

September Precipitation Trends in Rethel

The chart displays monthly precipitation patterns in Rethel, 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 Rethel, September typically receives around 57 mm (2.3 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 Rethel

In Rethel in September, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

September Average Humidity in Rethel

This chart illustrates the average monthly humidity levels in Rethel, 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 Rethel 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 Rethel

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

Maximum UV Index Levels in Rethel for September

The chart shows the monthly maximum UV Index (UVI) for Rethel 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 Rethel typically reaches 6, which falls under the high exposure category.

Data source: Rethel 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 Rethel Compares to Other Months

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

This table compares monthly weather conditions in Rethel, 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)	80 mm (3.1 inches)	91%	low
February Weather	5°C (42°F)	82 mm (3.2 inches)	89%	moderate
March Weather	7°C (46°F)	85 mm (3.4 inches)	86%	moderate
April Weather	11°C (51°F)	39 mm (1.5 inches)	84%	high
May Weather	14°C (58°F)	63 mm (2.5 inches)	82%	very high
June Weather	19°C (66°F)	63 mm (2.5 inches)	82%	very high
July Weather	20°C (68°F)	66 mm (2.6 inches)	80%	very high
August Weather	20°C (68°F)	64 mm (2.5 inches)	76%	very high
September Weather	16°C (61°F)	57 mm (2.3 inches)	81%	high
October Weather	12°C (54°F)	91 mm (3.6 inches)	88%	moderate
November Weather	7°C (45°F)	73 mm (2.9 inches)	92%	low
December Weather	5°C (42°F)	129 mm (5.1 inches)	93%	low