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September Weather in Hiersac, France

Last updated: August 23, 2025

In September, the average temperature in Hiersac, France hovers around 18°C (65°F), with variations that can dip to a cool 5°C (41°F) or soar to a warm 35°C (95°F). Expect rainfall totaling about 54 mm (2.1 in) over 9 days, while the air is comfortably humid with an average humidity of 79%.

September Temperature in Hiersac

In September in Hiersac, the average temperature is 18°C (65°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 5°C (41°F). This varied climate makes Hiersac an ideal destination for travelers seeking to experience both warm and mild weather during their trip.

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

The chart illustrates September temperature patterns in Hiersac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hiersac, September typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec424650556067717065574845
Data source: Temperature data for Hiersac 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 Hiersac

In Hiersac in September, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

September Precipitation Trends in Hiersac

The chart displays monthly precipitation patterns in Hiersac, 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 Hiersac, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec71728958100894633548784129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hiersac

In Hiersac in September, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

September Average Humidity in Hiersac

This chart illustrates the average monthly humidity levels in Hiersac, 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 Hiersac is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%84%84%82%79%75%79%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hiersac

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

Maximum UV Index Levels in Hiersac for September

The chart shows the monthly maximum UV Index (UVI) for Hiersac 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 Hiersac typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789996532
Data source: Hiersac 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 Hiersac Compares to Other Months

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

This table compares monthly weather conditions in Hiersac, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)70 mm (2.8 inches)90%low
February Weather8°C (46°F)72 mm (2.8 inches)87%moderate
March Weather10°C (50°F)89 mm (3.5 inches)85%moderate
April Weather13°C (55°F)58 mm (2.3 inches)84%high
May Weather16°C (61°F)100 mm (3.9 inches)84%very high
June Weather20°C (68°F)89 mm (3.5 inches)82%very high
July Weather22°C (71°F)46 mm (1.8 inches)79%very high
August Weather21°C (70°F)32 mm (1.3 inches)75%very high
September Weather18°C (65°F)54 mm (2.1 inches)79%high
October Weather14°C (57°F)87 mm (3.4 inches)86%moderate
November Weather9°C (48°F)84 mm (3.3 inches)90%moderate
December Weather7°C (45°F)129 mm (5.1 inches)92%low

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