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September Weather in Ploemeur, France

Last updated: August 23, 2025

In September, the average temperature in Ploemeur, France hovers around 17°C (62°F). Expect a comfortable range, with minimums dipping to 9°C (49°F) and maximums peaking at 26°C (79°F). Be prepared for some rain, as 46 mm (1.8 in) of precipitation falls over approximately 8 days, and don't forget your umbrella, as the average humidity sits at a notable 79%!

September Temperature in Ploemeur

In September in Ploemeur, the average temperature is 17°C (62°F). The maximum can reach 26°C (79°F), and the minimum can be as low as 9°C (49°F). Visitors should pack for mild weather, with layers for cooler evenings.

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

The chart illustrates September temperature patterns in Ploemeur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ploemeur, September typically has an average temperature of 17°C (62°F), with highs reaching up to 26°C (79°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec464749525762656462575249
Data source: Temperature data for Ploemeur 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 Ploemeur

In Ploemeur in September, the precipitation amount is 46 mm (1.8 in) over the course of 8 days.

September Precipitation Trends in Ploemeur

The chart displays monthly precipitation patterns in Ploemeur, 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 Ploemeur, September typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec65897143606347534610098130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ploemeur

In Ploemeur in September humidity is 79%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket wrapping around you, making strolling through the streets a bit heavier but still comfortably refreshing for travelers.

September Average Humidity in Ploemeur

This chart illustrates the average monthly humidity levels in Ploemeur, 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 Ploemeur is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%81%82%82%80%77%78%79%82%81%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ploemeur

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

Maximum UV Index Levels in Ploemeur for September

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

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

This table compares monthly weather conditions in Ploemeur, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)65 mm (2.5 inches)82%low
February Weather9°C (48°F)89 mm (3.5 inches)83%moderate
March Weather9°C (49°F)71 mm (2.8 inches)81%moderate
April Weather11°C (52°F)43 mm (1.7 inches)82%high
May Weather14°C (57°F)60 mm (2.3 inches)82%very high
June Weather17°C (62°F)63 mm (2.5 inches)80%very high
July Weather18°C (66°F)47 mm (1.8 inches)77%very high
August Weather18°C (65°F)53 mm (2.1 inches)78%very high
September Weather17°C (62°F)46 mm (1.8 inches)79%high
October Weather14°C (57°F)100 mm (4.0 inches)82%moderate
November Weather11°C (52°F)98 mm (3.9 inches)81%low
December Weather10°C (50°F)130 mm (5.1 inches)82%low

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