nomadseason

September Weather in Mars, France

Last updated: August 23, 2025

In Mars, France during the month of September, the average temperature hovers around 17°C (63°F). Expect it to range from a chilly 4°C (40°F) to a hot 34°C (93°F). With an average precipitation of 61 mm (2.4 in) spread over 9 days, you might want to keep an umbrella handy. The average humidity sits at a comfortable 78%, creating a pleasant atmosphere for your visit!

September Temperature in Mars

In September, in Mars, the average temperature is 17°C (63°F), with maximums reaching 34°C (93°F) and minimums dropping to 4°C (40°F). This weather makes it a great time for travelers to enjoy outdoor activities while being prepared for varying temperatures.

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

The chart illustrates September temperature patterns in Mars, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mars, September typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec374246525867717063544541
Data source: Temperature data for Mars 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 Mars

In Mars in September, the precipitation amount is 61 mm (2.4 in) spread over 9 days.

September Precipitation Trends in Mars

The chart displays monthly precipitation patterns in Mars, 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 Mars, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec79618050101846556618886132
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Mars

In Mars in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

September Average Humidity in Mars

This chart illustrates the average monthly humidity levels in Mars, 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 Mars is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%82%82%79%72%78%88%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mars

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

Maximum UV Index Levels in Mars for September

The chart shows the monthly maximum UV Index (UVI) for Mars 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 Mars typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Mars 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 Mars Compares to Other Months

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

This table compares monthly weather conditions in Mars, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)79 mm (3.1 inches)91%low
February Weather6°C (43°F)61 mm (2.4 inches)89%moderate
March Weather8°C (46°F)80 mm (3.1 inches)86%moderate
April Weather11°C (52°F)50 mm (2.0 inches)84%high
May Weather15°C (58°F)100 mm (4.0 inches)82%very high
June Weather19°C (67°F)84 mm (3.3 inches)82%very high
July Weather21°C (71°F)65 mm (2.6 inches)79%very high
August Weather21°C (70°F)56 mm (2.2 inches)72%very high
September Weather17°C (63°F)61 mm (2.4 inches)78%high
October Weather12°C (54°F)88 mm (3.5 inches)88%moderate
November Weather7°C (45°F)85 mm (3.4 inches)91%moderate
December Weather5°C (41°F)132 mm (5.2 inches)93%low

Compare Mars's Climate with Cities Worldwide