September Weather in Holnon, France

Last updated: August 23, 2025

In September, the average temperature in Holnon, France hovers around 16°C (61°F). Visitors can expect a pleasant range, with minimum temperatures dipping to 4°C (40°F) and maximums soaring up to 33°C (92°F). Rainfall is likely, with an average precipitation of 49 mm (1.9 in) spread over 8 days. Additionally, the air carries a comfortable average humidity of 81%, providing a unique atmosphere for all who explore the region.

September Temperature in Holnon

In September in Holnon, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 4°C (40°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates September temperature patterns in Holnon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Holnon, September typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Holnon

In Holnon in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

September Precipitation Trends in Holnon

The chart displays monthly precipitation patterns in Holnon, 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 Holnon, September typically receives around 49 mm (1.9 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 Holnon

In Holnon 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 Holnon

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

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

Maximum UV Index Levels in Holnon for September

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

Data source: Holnon 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 Holnon Compares to Other Months

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

This table compares monthly weather conditions in Holnon, 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 (40°F)	65 mm (2.6 inches)	91%	low
February Weather	6°C (42°F)	73 mm (2.9 inches)	89%	moderate
March Weather	8°C (46°F)	74 mm (2.9 inches)	86%	moderate
April Weather	10°C (51°F)	36 mm (1.4 inches)	84%	high
May Weather	14°C (57°F)	61 mm (2.4 inches)	82%	very high
June Weather	18°C (65°F)	56 mm (2.2 inches)	82%	very high
July Weather	20°C (68°F)	52 mm (2.1 inches)	80%	very high
August Weather	19°C (67°F)	74 mm (2.9 inches)	76%	very high
September Weather	16°C (61°F)	49 mm (1.9 inches)	81%	high
October Weather	12°C (54°F)	81 mm (3.2 inches)	88%	moderate
November Weather	7°C (46°F)	67 mm (2.6 inches)	92%	low
December Weather	6°C (42°F)	106 mm (4.2 inches)	93%	low