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September Weather in Gradignan, France

Last updated: August 23, 2025

In September, the average temperature in Gradignan, France is a pleasant 19°C (67°F). Expect a temperature range that can dip to a cool 6°C (43°F) and occasionally soar to a sizzling 36°C (97°F). During this month, the region experiences an average precipitation of 54 mm (2.1 in) spread over 9 days, contributing to an average humidity level of 76%. Embrace the diverse weather as you explore!

September Temperature in Gradignan

In September, in Gradignan, the average temperature is 19°C (67°F). Maximums can reach 36°C (97°F), while minimums can be as low as 6°C (43°F). This makes Gradignan an ideal destination for travelers seeking a mix of warm and cool weather experiences.

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

The chart illustrates September temperature patterns in Gradignan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gradignan, September typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (97°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec434851566268727167594947
Data source: Temperature data for Gradignan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Gradignan

In Gradignan in September, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

September Precipitation Trends in Gradignan

The chart displays monthly precipitation patterns in Gradignan, 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 Gradignan, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec59657261117964749547279120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gradignan

In Gradignan in September, humidity is 76%. With an average temperature of 19°C (67°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sluggish and requiring regular breaks to stay hydrated while exploring.

September Average Humidity in Gradignan

This chart illustrates the average monthly humidity levels in Gradignan, 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 Gradignan is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%82%82%80%76%73%76%82%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gradignan

In Gradignan 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 Gradignan.

Maximum UV Index Levels in Gradignan for September

The chart shows the monthly maximum UV Index (UVI) for Gradignan 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 Gradignan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367810997532
Data source: Gradignan 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 Gradignan Compares to Other Months

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

This table compares monthly weather conditions in Gradignan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)59 mm (2.3 inches)85%low
February Weather9°C (48°F)65 mm (2.6 inches)83%moderate
March Weather11°C (51°F)72 mm (2.8 inches)82%high
April Weather13°C (56°F)61 mm (2.4 inches)82%high
May Weather17°C (62°F)117 mm (4.6 inches)82%very high
June Weather20°C (69°F)96 mm (3.8 inches)80%very high
July Weather22°C (72°F)47 mm (1.9 inches)76%very high
August Weather22°C (72°F)49 mm (1.9 inches)73%very high
September Weather19°C (67°F)54 mm (2.1 inches)76%high
October Weather15°C (59°F)72 mm (2.9 inches)81%moderate
November Weather10°C (50°F)79 mm (3.1 inches)83%moderate
December Weather8°C (47°F)120 mm (4.7 inches)85%low

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