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September Weather in Gray, France

Last updated: August 23, 2025

In September, the average temperature in Gray, France hovers around 17°C (63°F), with a minimum dipping to 4°C (40°F) and a maximum peaking at 33°C (92°F). Expect around 50 mm (1.9 in) of precipitation spread over 9 days and an average humidity of 81%, making for a pleasantly humid climate.

September Temperature in Gray

In September in Gray, the average temperature is 17°C (63°F). Maximum temperatures can reach up to 33°C (92°F), while minimums can drop as low as 4°C (40°F). This variation in climate makes Gray an ideal destination for travelers looking to experience a range of weather conditions.

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

The chart illustrates September temperature patterns in Gray, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gray, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec374246525868717063544441
Data source: Temperature data for Gray 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 Gray

In Gray in September, the precipitation amount is 50 mm (1.9 in) over the course of 9 days.

September Precipitation Trends in Gray

The chart displays monthly precipitation patterns in Gray, 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 Gray, September typically receives around 50 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec88768747102785951508080140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gray

In Gray in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Gray

This chart illustrates the average monthly humidity levels in Gray, 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 Gray is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gray

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

Maximum UV Index Levels in Gray for September

The chart shows the monthly maximum UV Index (UVI) for Gray 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 Gray typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Gray 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 Gray Compares to Other Months

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

This table compares monthly weather conditions in Gray, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)88 mm (3.5 inches)91%low
February Weather5°C (42°F)76 mm (3.0 inches)89%moderate
March Weather8°C (46°F)87 mm (3.4 inches)87%moderate
April Weather11°C (52°F)47 mm (1.9 inches)84%high
May Weather15°C (59°F)102 mm (4.0 inches)80%very high
June Weather20°C (68°F)78 mm (3.1 inches)82%very high
July Weather22°C (71°F)59 mm (2.3 inches)82%very high
August Weather21°C (70°F)51 mm (2.0 inches)77%very high
September Weather17°C (63°F)50 mm (1.9 inches)81%high
October Weather12°C (54°F)80 mm (3.1 inches)89%moderate
November Weather7°C (44°F)80 mm (3.2 inches)89%low
December Weather5°C (41°F)140 mm (5.5 inches)91%low

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