The highest day temperature in September 2024 was 109°F. The lowest night temperature was 62°F. The average values for day and night temperatures during September were 101.2°F и 75.9°F respectivly.

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

Precipitation total in September for Las Vegas is 0.2 in. This value is relatively stable throughout the year.

The average wind speed in September is 6.2 mph.

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 Las Vegas in September is 11.4 hours.