Weather in Las Vegas in January

January 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 January, not how a country centroid would. Compared with July and December, January sits in the middle of Las Vegas's year.

Las Vegas
Average temp
9°C

4–14°C

Rainfall
14 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

January is the wet side of the year in Las Vegas. Days can be heavy. Plans that cannot survive rain are the wrong plans.

This is not a reason to skip Las Vegas if you like the place. It is a reason to pack for weather and to stop treating every grey hour as a failed holiday.

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 January.

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.