Weather in Las Vegas in December

December in Las Vegas is cool outdoor weather: usable if you dress for it, not a beach brief.

In United States, this is how Las Vegas actually wears December, not how a country centroid would. December is the cold side of the year in Las Vegas. Pack for that, not for a leftover summer photo.

Las Vegas
Average temp
10°C

4–15°C

Rainfall
11 mm

Not much rain

Sunshine
Wind
10 km/h

What to expect

Daytime

Cool days in Las Vegas: a jumper you can take off, a shell in the bag. Walking is fine. Lingering outside without a layer is optimism.

Mornings and evenings are colder than the postcard. Pack for both, especially if you leave the built-up centre.

Rain

Rain is not the story in Las Vegas in December. Pack for sun. A shower would be news, not a plan.

Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • A layer for cooler evenings

Where to stay in Las Vegas

Dates are a starting point for December.

All hotels in Las Vegas

Average weather in Las Vegas

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

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FAQs about Las Vegas

Climate averages for Las Vegas, 1991–2020.

The best time to visit Las Vegas is between April and June, the most comfortable stretch of the year on these averages.

July is the hottest month, with an average around 34°C.

February is the wettest month, with about 21 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.