Monthly climate ·Las Vegas weather in December
In December, Las Vegas averages around 15° by day and 4° at night, with 3 rain days a month — about a 8% chance of rain on any given day.
By day
15°C
At night
4°C
Daily rain chance
8%
Rain days a month
3
Monthly precipitation
15 mm
Sunshine hours a day
8.1
Average of 2016–2025 (Open-Meteo archive). Typical climate — not a forecast.
Is December a good time to visit Las Vegas?
December is cool in Las Vegas — around 15° by day and 4° at night. Dress in layers; comfortable for city sightseeing.
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Frequently asked questions
- What is the weather in Las Vegas in December?
- In December, temperatures in Las Vegas average between 4° at night and 15° by day, with 3 rain days a month (average of 2016–2025).
- How much rain falls in Las Vegas in December?
- Las Vegas gets about 15 mm of rain in December on average, spread over roughly 3 rain days.
- Is December a good time to visit Las Vegas?
- December is cool in Las Vegas — around 15° by day and 4° at night. Dress in layers; comfortable for city sightseeing.