nomadseason

September Weather in Martigny, France

Last updated: August 23, 2025

In September, the average temperature in Martigny, France hovers around 15°C (60°F). Expect a minimum chill of 4°C (40°F), while highs can reach up to 29°C (85°F). With an average precipitation of 55 mm (2.2 in) spread across 11 days, humidity levels are typically around 76%, creating a refreshing yet damp atmosphere.

September Temperature in Martigny

In September in Martigny, the average temperature is 15°C (60°F), with maximums reaching 29°C (85°F) and minimums dipping as low as 4°C (40°F). This weather makes it a great time for travelers to enjoy outdoor activities while being prepared for the occasional chill.

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

The chart illustrates September temperature patterns in Martigny, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Martigny, September typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec414346505563656560544643
Data source: Temperature data for Martigny generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Martigny

In Martigny, in September, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

September Precipitation Trends in Martigny

The chart displays monthly precipitation patterns in Martigny, 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 Martigny, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6768793888765380558783119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Martigny

In Martigny in September humidity is 76%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit more challenging and urging you to stay hydrated while exploring the area.

September Average Humidity in Martigny

This chart illustrates the average monthly humidity levels in Martigny, 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 Martigny is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Martigny

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

Maximum UV Index Levels in Martigny for September

The chart shows the monthly maximum UV Index (UVI) for Martigny 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 Martigny typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Martigny 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 Martigny Compares to Other Months

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

This table compares monthly weather conditions in Martigny, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)67 mm (2.6 inches)91%low
February Weather6°C (43°F)68 mm (2.7 inches)89%moderate
March Weather8°C (46°F)79 mm (3.1 inches)85%moderate
April Weather10°C (50°F)38 mm (1.5 inches)84%high
May Weather13°C (56°F)88 mm (3.5 inches)82%very high
June Weather17°C (63°F)76 mm (3.0 inches)80%very high
July Weather19°C (66°F)53 mm (2.1 inches)73%very high
August Weather18°C (65°F)80 mm (3.2 inches)68%very high
September Weather15°C (60°F)55 mm (2.2 inches)76%high
October Weather12°C (54°F)87 mm (3.4 inches)88%moderate
November Weather8°C (46°F)83 mm (3.3 inches)92%low
December Weather6°C (44°F)119 mm (4.7 inches)93%low

Compare Martigny's Climate with Cities Worldwide