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September Weather in La Plaine-sur-Mer, France

Last updated: August 23, 2025

In September, the average temperature in La Plaine-sur-Mer, France hovers around 17°C (63°F). You can expect a minimum of 9°C (48°F) and a maximum reaching 31°C (88°F). With 39 mm (1.5 in) of precipitation spread over 8 days, you'll want to be prepared for some rain. The average humidity sits at a comfortable 75%, ensuring a pleasant atmosphere throughout the month.

September Temperature in La Plaine-sur-Mer

In September in La Plaine-sur-Mer, the average temperature is 17°C (63°F), with maximums reaching 31°C (88°F) and minimums dipping as low as 9°C (48°F). This variation makes it a great time for travelers to enjoy both warm and cooler moments.

September Weather in La Plaine-sur-Mer: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Plaine-sur-Mer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Plaine-sur-Mer, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec454749545964686663575048
Data source: Temperature data for La Plaine-sur-Mer 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 La Plaine-sur-Mer

In La Plaine-sur-Mer in September, the precipitation amount is 39 mm (1.5 in) over the course of 8 days.

September Precipitation Trends in La Plaine-sur-Mer

The chart displays monthly precipitation patterns in La Plaine-sur-Mer, 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 La Plaine-sur-Mer, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5067674359714148398278112
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Plaine-sur-Mer

In La Plaine-sur-Mer in September, humidity is 75%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities a bit sticky and requiring frequent breaks to stay refreshed during your travels.

September Average Humidity in La Plaine-sur-Mer

This chart illustrates the average monthly humidity levels in La Plaine-sur-Mer, 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 La Plaine-sur-Mer 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 La Plaine-sur-Mer

In La Plaine-sur-Mer 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 La Plaine-sur-Mer, you can refer to this Hourly UV Index in La Plaine-sur-Mer.

Maximum UV Index Levels in La Plaine-sur-Mer for September

The chart shows the monthly maximum UV Index (UVI) for La Plaine-sur-Mer 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 La Plaine-sur-Mer typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986522
Data source: La Plaine-sur-Mer 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 La Plaine-sur-Mer Compares to Other Months

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

This table compares monthly weather conditions in La Plaine-sur-Mer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)50 mm (2.0 inches)88%low
February Weather8°C (47°F)67 mm (2.6 inches)87%moderate
March Weather10°C (50°F)67 mm (2.6 inches)84%moderate
April Weather12°C (54°F)43 mm (1.7 inches)83%high
May Weather15°C (59°F)59 mm (2.3 inches)81%very high
June Weather18°C (65°F)71 mm (2.8 inches)75%very high
July Weather20°C (68°F)41 mm (1.6 inches)65%very high
August Weather19°C (67°F)48 mm (1.9 inches)67%very high
September Weather17°C (63°F)39 mm (1.5 inches)75%high
October Weather14°C (58°F)82 mm (3.2 inches)85%moderate
November Weather10°C (50°F)78 mm (3.1 inches)88%low
December Weather9°C (48°F)112 mm (4.4 inches)90%low

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