Las Vegas, United States skyline

Las Vegas Weather in December

Typical December weather in Las Vegas, United States, based on 2006–2025 climate averages.

In December, Las Vegas averages a high of 13.3°C (55.9°F) and a low of 3.7°C (38.7°F), with about 3 rainy days (20 mm of rain) and 8.2 hours of sunshine a day.

Avg high

13.3°C (55.9°F)

Avg low

3.7°C (38.7°F)

Rainfall

20 mm (0.8 in)

Rainy days

3 days

Sunshine

8.2 h / day

Humidity

45%

December vs the rest of the year

No month in Las Vegas is cooler than December; for rain it is the wettest month.

MonthAvg highvs DecemberRainRainy days
January14°C (57.2°F)+0.7°C (+1.3°F)17 mm3
February16.8°C (62.2°F)+3.5°C (+6.3°F)16 mm3
March21.1°C (70°F)+7.8°C (+14°F)11 mm3
April26.1°C (79°F)+12.8°C (+23°F)4 mm1
May30.7°C (87.3°F)+17.4°C (+31.3°F)5 mm1
June37.5°C (99.5°F)+24.2°C (+43.6°F)2 mm0
July39.9°C (103.8°F)+26.6°C (+47.9°F)8 mm2
August38.5°C (101.3°F)+25.2°C (+45.4°F)14 mm2
September34.4°C (93.9°F)+21.1°C (+38°F)9 mm1
October26.8°C (80.2°F)+13.5°C (+24.3°F)8 mm2
November19.4°C (66.9°F)+6.1°C (+11°F)12 mm1
December13.3°C (55.9°F)—20 mm3

What December feels like in Las Vegas

December is early winter in Las Vegas. Daytime feels cool and fresh rather than cold. Evenings bring a clear drop in temperature, and nights are cold. Moderate humidity keeps the air pleasant.

Rain in Las Vegas in December

Rain is rare in December — most weeks pass without a wet day. A rainy day brings about 6.6 mm (0.3 in) on average — steady rain rather than a passing shower. Across the year Las Vegas averages about 5.7 mm per rainy day, so December is typical. December is Las Vegas's wettest month of the year.

Daylight and sunshine in December

Mid-month, Las Vegas gets 9 h 43 min of daylight, from sunrise near 6:44 am to sunset near 4:27 pm. Compared with mid-November, the day has lost 34 min. Measured sunshine covers about 84% of the daylight — skies are mostly clear.

How December compares to the rest of the year

December is the coolest month of the year in Las Vegas. Afternoons run 6.1°C (11°F) cooler than in November, with 8 mm more rain. The cooling trend carries on into January. The next month's average high: 14°C (57.2°F).

Who December suits

  • Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
  • Parks & outdoor: less ideal — too cool to sit outside for long.

Tips for visiting Las Vegas in December

Versatile Layers

Mornings and evenings are cooler than midday, so dress in layers.

Warm Layers

A warm jacket, a hat and gloves for cold mornings and evenings.

Sunglasses

Plenty of sun, so bring sunglasses and a cap.

Quick questions

How warm is Las Vegas in December?

It feels cool: typical highs are 13.3°C (55.9°F), with lows near 3.7°C (38.7°F).

Does it rain a lot in Las Vegas in December?

No — December is one of the drier times, with about 3 rainy days and 20 mm in total.

What should I wear in Las Vegas in December?

Based on the averages: versatile layers, warm layers and sunglasses. Add a layer for after dark.

Is December or January better for visiting Las Vegas?

January, narrowly: it ranks #7 of 12 among Las Vegas's months, against #8 for the other.

Is December a good time to visit Las Vegas?

Great

Great — mild but cool days, mostly dry (about 3 rainy days), plenty of sunshine (8.2 h a day). Within Las Vegas's own year, December ranks #8 of 12.

December in other United States cities

Warmer places in December

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Las Vegas weather by month.