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September Weather in Nyons, France

Last updated: August 23, 2025

In Nyons, France, the average temperature in September hovers around 17°C (64°F), with fluctuations ranging from a cool 5°C (42°F) to a warm 31°C (87°F). Be prepared for some rain, as you can expect an average precipitation of 45 mm (1.8 in) spread over 5 days. Overall, the average humidity is around 73%, adding a touch of moisture to the air.

September Temperature in Nyons

In September in Nyons, the average temperature is 17°C (64°F), with maximums reaching 31°C (87°F) and minimums dipping as low as 5°C (42°F). This makes Nyons a great destination for travelers looking to enjoy mild weather while being prepared for the occasional warm or cool day.

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

The chart illustrates September temperature patterns in Nyons, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nyons, September typically has an average temperature of 17°C (64°F), with highs reaching up to 31°C (87°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec384246515867727163554540
Data source: Temperature data for Nyons 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 Nyons

In Nyons in September, the total precipitation amount is 45 mm (1.8 in) over a span of 5 days.

September Precipitation Trends in Nyons

The chart displays monthly precipitation patterns in Nyons, 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 Nyons, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec404372721196023404596106102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nyons

In Nyons in September, humidity is 73%. With an average temperature of 17°C (64°F), this humidity feels like a warm embrace, making it quite muggy for traveling, where the air can feel thick and sticky, causing a sense of discomfort as you explore the local sights.

September Average Humidity in Nyons

This chart illustrates the average monthly humidity levels in Nyons, 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 Nyons is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nyons

In Nyons in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Nyons.

Maximum UV Index Levels in Nyons for September

The chart shows the monthly maximum UV Index (UVI) for Nyons 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 Nyons typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Nyons 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 Nyons Compares to Other Months

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

This table compares monthly weather conditions in Nyons, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)40 mm (1.6 inches)91%low
February Weather6°C (43°F)43 mm (1.7 inches)87%moderate
March Weather8°C (46°F)72 mm (2.9 inches)84%high
April Weather11°C (52°F)72 mm (2.8 inches)83%high
May Weather15°C (59°F)119 mm (4.7 inches)78%very high
June Weather20°C (68°F)60 mm (2.4 inches)75%very high
July Weather22°C (72°F)23 mm (0.9 inches)72%very high
August Weather22°C (71°F)40 mm (1.6 inches)63%very high
September Weather17°C (64°F)45 mm (1.8 inches)73%high
October Weather13°C (55°F)96 mm (3.8 inches)89%moderate
November Weather7°C (46°F)106 mm (4.2 inches)90%moderate
December Weather4°C (40°F)102 mm (4.0 inches)90%low

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