September Weather in Casteljaloux, France

Last updated: August 23, 2025

In Casteljaloux, France, the average temperature in September is a pleasant 19°C (67°F), with minimums dipping to 5°C (42°F) and maximums soaring to 36°C (97°F). Expect about 64 mm (2.5 in) of precipitation spread across 9 days, contributing to an average humidity level of 79%. Enjoy the diverse weather of this captivating destination!

September Temperature in Casteljaloux

In September in Casteljaloux, the average temperature is 19°C (67°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 5°C (42°F). This diverse temperature range makes Casteljaloux a versatile destination for travelers, suitable for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Casteljaloux, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casteljaloux, 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 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec424851566269737267584946
Data source: Temperature data for Casteljaloux 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 Casteljaloux

In Casteljaloux in September, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

September Precipitation Trends in Casteljaloux

The chart displays monthly precipitation patterns in Casteljaloux, 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 Casteljaloux, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec626672781161285756647575113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Casteljaloux

In Casteljaloux in September, humidity is 79%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as the air is thick and can leave you feeling sluggish during outdoor adventures.

September Average Humidity in Casteljaloux

This chart illustrates the average monthly humidity levels in Casteljaloux, 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 Casteljaloux is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%84%84%82%79%75%79%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Casteljaloux

In Casteljaloux 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 Casteljaloux.

Maximum UV Index Levels in Casteljaloux for September

The chart shows the monthly maximum UV Index (UVI) for Casteljaloux 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 Casteljaloux typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23678101097532
Data source: Casteljaloux 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 Casteljaloux Compares to Other Months

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

This table compares monthly weather conditions in Casteljaloux, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)62 mm (2.4 inches)90%low
February Weather9°C (48°F)66 mm (2.6 inches)87%moderate
March Weather10°C (51°F)72 mm (2.9 inches)85%high
April Weather13°C (56°F)78 mm (3.1 inches)84%high
May Weather17°C (62°F)116 mm (4.6 inches)84%very high
June Weather20°C (69°F)128 mm (5.0 inches)82%very high
July Weather23°C (73°F)57 mm (2.2 inches)79%very high
August Weather22°C (73°F)56 mm (2.2 inches)75%very high
September Weather19°C (67°F)64 mm (2.5 inches)79%high
October Weather15°C (59°F)75 mm (2.9 inches)86%moderate
November Weather9°C (49°F)75 mm (3.0 inches)90%moderate
December Weather8°C (46°F)113 mm (4.4 inches)92%low

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