nomadseason

September Weather in Kerlouan, France

Last updated: August 23, 2025

In Kerlouan, France, the average temperature in September hovers around 16°C (61°F). You can expect a minimum of 11°C (52°F) and a maximum of 21°C (71°F). While the weather is generally pleasant, be prepared for about 47 mm (1.8 in) of precipitation over 9 days. The average humidity during this time is 76%, creating a comfortably mild atmosphere.

September Temperature in Kerlouan

In September in Kerlouan, the average temperature is 16°C (61°F), with maximums reaching 21°C (71°F) and minimums dipping as low as 11°C (52°F). It's a perfect time to explore Kerlouan, so pack a light jacket and enjoy the mild weather!

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

The chart illustrates September temperature patterns in Kerlouan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kerlouan, September typically has an average temperature of 16°C (61°F), with highs reaching up to 21°C (71°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec494949515458616160575351
Data source: Temperature data for Kerlouan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kerlouan

In Kerlouan in September, the total precipitation amount is 47 mm (1.8 in), which falls over the course of 9 days.

September Precipitation Trends in Kerlouan

The chart displays monthly precipitation patterns in Kerlouan, 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 Kerlouan, September typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10010179405873404447125102157
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kerlouan

In Kerlouan in September humidity is 76%. With an average temperature of 16°C (61°F), this humidity feels like a warm embrace that makes traveling feel slightly heavy yet refreshing, often prompting you to seek shade or indulge in ice-cold drinks to stay comfortable.

September Average Humidity in Kerlouan

This chart illustrates the average monthly humidity levels in Kerlouan, 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 Kerlouan is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kerlouan

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

Maximum UV Index Levels in Kerlouan for September

The chart shows the monthly maximum UV Index (UVI) for Kerlouan 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 Kerlouan typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986521
Data source: Kerlouan 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 Kerlouan Compares to Other Months

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

This table compares monthly weather conditions in Kerlouan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)100 mm (3.9 inches)89%low
February Weather9°C (49°F)101 mm (4.0 inches)88%moderate
March Weather10°C (49°F)79 mm (3.1 inches)85%moderate
April Weather10°C (51°F)40 mm (1.6 inches)84%high
May Weather12°C (54°F)57 mm (2.3 inches)81%very high
June Weather15°C (58°F)72 mm (2.9 inches)77%very high
July Weather16°C (61°F)40 mm (1.6 inches)63%very high
August Weather16°C (62°F)44 mm (1.7 inches)71%very high
September Weather16°C (61°F)47 mm (1.8 inches)76%high
October Weather14°C (58°F)125 mm (4.9 inches)89%moderate
November Weather12°C (53°F)102 mm (4.0 inches)90%low
December Weather10°C (51°F)157 mm (6.2 inches)90%low

Compare Kerlouan's Climate with Cities Worldwide