Monthly climate guide
Las Vegas weather in December
Expect cool weather in Las Vegas in December: afternoons reach about 14°C (58°F), while nights drop to around 2°C (36°F). Around 13 mm of rain falls over the month (very dry), and skies are a mix of sun and cloud. Daytime highs are 6°C cooler than November and about the same as January.
What stands out in December
- Evenings cool off sharply: the daily range is around 12°C, so pack a layer.
- In Las Vegas, December is early winter.
- Just 320 km apart, but Las Vegas runs about 3°C cooler than Riverside this month.
December is typically Las Vegas's coolest month.
Avg high
14°C
58°F
Avg low
2°C
36°F
Rainfall
13 mm
very dry
Humidity
43%
relative
Sky
44%
cloud · a mix of sun and cloud
Las Vegas weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 15°C / 59°F | 3°C / 37°F | 17 mm | 46% | 45% |
| February | 18°C / 64°F | 4°C / 39°F | 15 mm | 41% | 39% |
| March | 22°C / 72°F | 8°C / 46°F | 13 mm | 36% | 46% |
| April | 27°C / 80°F | 11°C / 52°F | 9 mm | 28% | 38% |
| May | 31°C / 88°F | 15°C / 59°F | 6 mm | 24% | 35% |
| June | 39°C / 102°F | 22°C / 71°F | 1 mm | 14% | 23% |
| July | 40°C / 105°F | 25°C / 78°F | 17 mm | 23% | 36% |
| August | 40°C / 103°F | 25°C / 77°F | 18 mm | 24% | 31% |
| September | 35°C / 96°F | 21°C / 69°F | 10 mm | 26% | 24% |
| October | 28°C / 83°F | 14°C / 57°F | 10 mm | 27% | 26% |
| November | 21°C / 69°F | 7°C / 45°F | 12 mm | 33% | 34% |
| December | 14°C / 58°F | 2°C / 36°F | 13 mm | 43% | 44% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- An extra layer — evenings are noticeably cooler than afternoons
Is December a good time to visit Las Vegas?
Compare the months in the chart above to find your ideal window.
Best time to visit Las Vegas →Other United States cities in December
Cite or embed this data
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Las Vegas weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/las-vegas/december
<a href="https://weathercompare.eu/weather/usa/las-vegas/december">Las Vegas weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/las-vegas" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Las Vegas weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/las-vegas/december">Las Vegas weather in December</a> – WeatherCompare</p>
Las Vegas in December: quick answers
Is December a good time to visit Las Vegas?
December is a reasonable time for Las Vegas: highs around 14°C and about 13 mm of rain, though not one of the three best months.
How warm is Las Vegas in December?
Average highs are about 14°C (58°F) and average lows about 2°C (36°F), based on 10 years of daily data.
Does it rain a lot in Las Vegas in December?
Las Vegas typically gets around 13 mm of rain in December — very dry.
Figures are long-term averages for the area around Las Vegas (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.