September Weather in Dax, France

Last updated: August 23, 2025

In Dax, France, the average temperature in September hovers around 20°C (68°F), with a minimum of 6°C (44°F) and a peak reaching 37°C (98°F). Expect some rain, with 69 mm (2.7 in) of precipitation spread over 9 days. The air feels quite humid, with an average humidity level of 75%.

September Temperature in Dax

In September in Dax, the average temperature is 20°C (68°F). Maximums can reach 37°C (98°F), and minimums can be as low as 6°C (44°F). This makes Dax a great destination for travelers seeking mild weather with the possibility of warm days and cooler nights.

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

The chart illustrates September temperature patterns in Dax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dax, September typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (98°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Dax

In Dax in September, the precipitation amount is 69 mm (2.7 in) spread over 9 days.

September Precipitation Trends in Dax

The chart displays monthly precipitation patterns in Dax, 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 Dax, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Dax

In Dax in September, humidity is 75%. With an average temperature of 20°C (68°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and exhausted.

September Average Humidity in Dax

This chart illustrates the average monthly humidity levels in Dax, 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 Dax is approximately 75%, 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 Dax

In Dax in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Dax.

Maximum UV Index Levels in Dax for September

The chart shows the monthly maximum UV Index (UVI) for Dax 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 Dax typically reaches 7, which falls under the high exposure category.

Data source: Dax 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 Dax Compares to Other Months

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

This table compares monthly weather conditions in Dax, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	87 mm (3.4 inches)	86%	low
February Weather	10°C (50°F)	74 mm (2.9 inches)	85%	moderate
March Weather	11°C (52°F)	78 mm (3.1 inches)	82%	moderate
April Weather	14°C (57°F)	73 mm (2.9 inches)	81%	high
May Weather	17°C (62°F)	110 mm (4.3 inches)	80%	very high
June Weather	20°C (68°F)	95 mm (3.7 inches)	81%	very high
July Weather	22°C (72°F)	56 mm (2.2 inches)	80%	very high
August Weather	22°C (72°F)	62 mm (2.4 inches)	76%	very high
September Weather	20°C (68°F)	69 mm (2.7 inches)	75%	high
October Weather	15°C (60°F)	87 mm (3.4 inches)	81%	moderate
November Weather	10°C (51°F)	123 mm (4.9 inches)	85%	moderate
December Weather	9°C (49°F)	160 mm (6.3 inches)	87%	low