Verdict: Excellent month
Las Vegas Weather in December
December is mild-to-cool in Las Vegas, topping out near 15°C (59°F) — comfortable with a layer on. Rain is a non-issue, with only ~2 wet days in an average year. Overall, December is one of the best months of the year to be in Las Vegas.
Average high
15°C / 59°F
Average low
4°C / 39°F
Rain days
~2
Precipitation
8 mm
What to pack for Las Vegas in December
- Layers — t-shirts under a light jacket or sweater
- Comfortable walking shoes — every guide on this site assumes you'll use them
December against the rest of the year
Warmest in Las Vegas: Jul (42°C / 108°F) · Coolest: Jan (14°C / 57°F) · Wettest: Mar (~5 rain days)
14°
4°
Jan
17°
5°
Feb
20°
9°
Mar
27°
14°
Apr
32°
19°
May
38°
24°
Jun
42°
28°
Jul
40°
27°
Aug
36°
23°
Sep
29°
16°
Oct
19°
8°
Nov
15°
4°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)