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September Weather in Saint-Martin-sur-Oust, France

Last updated: August 23, 2025

In September, the average temperature in Saint-Martin-sur-Oust, France is a pleasant 16°C (62°F). Expect a range that can dip to as low as 5°C (42°F) and rise up to 32°C (89°F). During this time, 42 mm (1.6 in) of precipitation falls over 8 days, and with an average humidity of 75%, the atmosphere is often quite tropical.

September Temperature in Saint-Martin-sur-Oust

In September, in Saint-Martin-sur-Oust, the average temperature is 16°C (62°F). Maximums can reach 32°C (89°F), and minimums can be as low as 5°C (42°F). It’s advisable to pack layers to accommodate the varying temperatures while traveling.

September Weather in Saint-Martin-sur-Oust: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Martin-sur-Oust, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Martin-sur-Oust, September typically has an average temperature of 16°C (62°F), with highs reaching up to 32°C (89°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec434548525764676562554846
Data source: Temperature data for Saint-Martin-sur-Oust 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 Saint-Martin-sur-Oust

In Saint-Martin-sur-Oust in September, the precipitation amount is 42 mm (1.6 in) over a span of 8 days.

September Precipitation Trends in Saint-Martin-sur-Oust

The chart displays monthly precipitation patterns in Saint-Martin-sur-Oust, 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 Saint-Martin-sur-Oust, September typically receives around 42 mm (1.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec446462506993484842877096
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Martin-sur-Oust

In Saint-Martin-sur-Oust in September, humidity is 75%. With an average temperature of 16°C (62°F), this humidity feels like a heavy blanket wrapping around you, making traveling feel a bit stifling and sticky, as the air clings to your skin and can sap your energy.

September Average Humidity in Saint-Martin-sur-Oust

This chart illustrates the average monthly humidity levels in Saint-Martin-sur-Oust, 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 Saint-Martin-sur-Oust 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 Saint-Martin-sur-Oust

In Saint-Martin-sur-Oust 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 Saint-Martin-sur-Oust, you can refer to this Hourly UV Index in Saint-Martin-sur-Oust.

Maximum UV Index Levels in Saint-Martin-sur-Oust for September

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

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

This table compares monthly weather conditions in Saint-Martin-sur-Oust, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)44 mm (1.7 inches)88%low
February Weather7°C (45°F)64 mm (2.5 inches)87%moderate
March Weather9°C (48°F)62 mm (2.4 inches)84%moderate
April Weather11°C (52°F)50 mm (2.0 inches)83%high
May Weather14°C (58°F)69 mm (2.7 inches)81%very high
June Weather18°C (64°F)93 mm (3.7 inches)75%very high
July Weather19°C (67°F)48 mm (1.9 inches)65%very high
August Weather19°C (66°F)48 mm (1.9 inches)67%very high
September Weather16°C (62°F)42 mm (1.6 inches)75%high
October Weather13°C (56°F)87 mm (3.4 inches)85%moderate
November Weather9°C (48°F)70 mm (2.7 inches)88%low
December Weather8°C (46°F)95 mm (3.8 inches)90%low

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