Weather in Las Vegas in September

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28° C



1 mm

per month


82 %



23 %


What’s the weather like in Las Vegas in September?

Las Vegas experiences warm and sunny weather in September, making it a popular time for visitors. The city is located in the Mojave Desert, so the climate is generally desert-like, with hot summers and mild winters. September marks the end of summer and the transition to autumn, but temperatures in Las Vegas can still be quite high during this time.

Average daily temperatures

In September, the average daily temperature in Las Vegas ranges from around 24°C (75°F) to 33°C (91°F). Daytime temperatures can often exceed 38°C (100°F), especially in the first half of the month. However, as September progresses, temperatures tend to cool down gradually. Nights are generally cooler and more comfortable, with temperatures dropping to around 19°C (66°F). It is advisable to wear light and breathable clothing during the day and carry a light layer for cooler evenings.

Sunshine and rainfall

Las Vegas is known for its abundant sunshine, and September is no exception. The city receives around 11 hours of sunshine per day, providing ample opportunities for outdoor activities and exploration. Rainfall during this month is relatively scarce, with an average of only 3mm (0.12 inches) expected throughout September. The chance of precipitation is minimal, and any rain that does occur is typically short-lived. Visitors can expect clear skies and dry weather for the majority of their stay in Las Vegas in September.

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