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September Weather in Callac, France

Last updated: August 23, 2025

In September, the average temperature in Callac, France hovers around 15°C (59°F). You can expect a minimum dip to 5°C (42°F) and a pleasant maximum of 29°C (85°F). Be prepared for some rain, with 45 mm (1.8 in) of precipitation spread over 9 days. Don’t forget to account for the average humidity level of 76%, adding a touch of moisture to the air.

September Temperature in Callac

In September in Callac, the average temperature is 15°C (59°F). Maximums can reach up to 29°C (85°F), while minimums can dip as low as 5°C (42°F). This makes Callac a great destination for travelers seeking mild weather with the possibility of warm days, perfect for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Callac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Callac, September typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec434547505460636259544846
Data source: Temperature data for Callac 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 Callac

In Callac in September, the precipitation amount is 45 mm (1.8 in) spread over 9 days.

September Precipitation Trends in Callac

The chart displays monthly precipitation patterns in Callac, 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 Callac, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec677968507210350514510878120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Callac

In Callac in September humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

September Average Humidity in Callac

This chart illustrates the average monthly humidity levels in Callac, 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 Callac 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 Callac

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

Maximum UV Index Levels in Callac for September

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

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

This table compares monthly weather conditions in Callac, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)67 mm (2.6 inches)89%low
February Weather7°C (45°F)79 mm (3.1 inches)88%moderate
March Weather8°C (47°F)68 mm (2.7 inches)85%moderate
April Weather10°C (50°F)50 mm (2.0 inches)84%high
May Weather12°C (55°F)72 mm (2.8 inches)81%very high
June Weather15°C (60°F)103 mm (4.1 inches)77%very high
July Weather17°C (63°F)50 mm (2.0 inches)63%very high
August Weather16°C (62°F)51 mm (2.0 inches)71%very high
September Weather15°C (59°F)45 mm (1.8 inches)76%high
October Weather12°C (54°F)108 mm (4.3 inches)89%moderate
November Weather9°C (48°F)78 mm (3.1 inches)90%low
December Weather8°C (46°F)120 mm (4.7 inches)90%low

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