Las Vegas Weather
Las Vegas sits in the Mojave Desert and sees more than 300 sunny days per year. The climate is hot and arid — expect minimal rainfall, low humidity, and dramatic temperature swings between day and night, especially in spring and fall.
Weather by Season
Summer (June – August)
Summer is the hottest time of year. Average highs regularly exceed 105°F (40°C), with record temperatures approaching 117°F. Nights cool down into the low 80s. Monsoon thunderstorms can briefly roll through in July and August, offering a rare break from the heat. Stay hydrated, wear sunscreen, and plan outdoor activities for early morning or after dark.
Fall (September – November)
September is still warm with highs around 95–100°F, but temperatures drop quickly through October and November. By November, daytime highs are in the mid-60s and nights can dip below 45°F. Fall is one of the most popular times to visit — comfortable weather, fewer crowds than summer, and a packed events calendar.
Winter (December – February)
Las Vegas winters are mild and sunny compared to most of the country. Daytime highs sit between 55–65°F, while nights can drop into the mid-30s. Snow is rare but possible at higher elevations nearby (Mount Charleston sees regular snowfall). Pack layers — indoor venues are heavily air-conditioned year-round.
Spring (March – May)
Spring brings pleasant temperatures ranging from the mid-60s in March to the upper 80s by May. It's arguably the best time to visit — warm enough for the pool, cool enough for long walks on the Strip. Occasional wind gusts are common in March.
Best Time to Visit
The best time to visit Las Vegas for comfortable outdoor weather is October through November or March through May. If you're focused on pool season, late May through September is ideal. Budget travelers should note that summer rates can drop significantly despite — or because of — the extreme heat.
What to Pack
- Summer: Light, breathable clothing, sunglasses, sunscreen SPF 50+, and a refillable water bottle. A light jacket for heavily air-conditioned casinos and restaurants.
- Fall/Spring: Layers — mornings and evenings can be significantly cooler than afternoons.
- Winter: A warm jacket for evenings, comfortable walking shoes, and layers for indoor-outdoor transitions.
Frequently Asked Questions
Does it rain in Las Vegas?
Las Vegas averages only about 4 inches of rain per year, making it one of the driest cities in the United States. Brief monsoon thunderstorms are possible in July and August but rarely last long.
How hot does Las Vegas get in summer?
Average July highs are around 105–108°F (40–42°C). The all-time record high is 117°F (47°C), recorded in July 2017. Heat advisories are common from June through August.
Does it snow in Las Vegas?
Snow in Las Vegas is rare — measurable snowfall occurs only once every few years. However, Mount Charleston, located about 45 minutes from the Strip, regularly receives snow in winter and is a popular day trip for locals.
What is the weather like in Las Vegas in December?
December highs average around 55°F (13°C) with overnight lows near 36°F (2°C). Days are generally sunny and pleasant for sightseeing, but you'll want a coat for evenings on the Strip.