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September Weather in Petosse, France

Last updated: August 23, 2025

In @September@, the average temperature in @Petosse@, @France@ is a pleasant 18°C (65°F). However, temperatures can vary significantly, with a minimum of 5°C (41°F) and a peak of 34°C (94°F). During this month, expect approximately 41 mm (1.6 in) of precipitation spread across 8 days, and enjoy an average humidity level of 75%.

September Temperature in Petosse

In September in Petosse, the average temperature is 18°C (65°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 5°C (41°F). This makes Petosse a great destination for travelers seeking mild weather with the possibility of warm days and cool evenings.

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

The chart illustrates September temperature patterns in Petosse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petosse, September typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec434649546066706964574846
Data source: Temperature data for Petosse 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 Petosse

In Petosse in September, the total precipitation amount is 41 mm (1.6 in) occurring over the course of 8 days.

September Precipitation Trends in Petosse

The chart displays monthly precipitation patterns in Petosse, 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 Petosse, September typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5871775175732927418385115
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Petosse

In Petosse in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Petosse

This chart illustrates the average monthly humidity levels in Petosse, 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 Petosse is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%84%83%81%75%65%67%75%85%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Petosse

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

Maximum UV Index Levels in Petosse for September

The chart shows the monthly maximum UV Index (UVI) for Petosse 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 Petosse typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: Petosse 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 Petosse Compares to Other Months

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

This table compares monthly weather conditions in Petosse, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)58 mm (2.3 inches)88%low
February Weather8°C (46°F)71 mm (2.8 inches)87%moderate
March Weather10°C (50°F)77 mm (3.0 inches)84%moderate
April Weather12°C (54°F)51 mm (2.0 inches)83%high
May Weather16°C (60°F)75 mm (3.0 inches)81%very high
June Weather19°C (67°F)73 mm (2.9 inches)75%very high
July Weather21°C (70°F)29 mm (1.1 inches)65%very high
August Weather20°C (69°F)27 mm (1.1 inches)67%very high
September Weather18°C (65°F)41 mm (1.6 inches)75%high
October Weather14°C (57°F)83 mm (3.3 inches)85%moderate
November Weather9°C (48°F)85 mm (3.4 inches)88%moderate
December Weather8°C (46°F)115 mm (4.5 inches)90%low

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