The highest day temperature in September 2026 was 85°F. The lowest night temperature was 70°F. The average values for day and night temperatures during September were 78.3°F и 74.3°F respectivly.

The average sea surface temperature in September 2026 for Montpellier was 76.4°F. The maximum and minimum values were 73.4°F and 79.8°F respectively.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Montpellier is 1.4 in.

The average wind speed in September is 8.3 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Montpellier in September is 9.7 hours.