WinterGood time to go ~65°F highs

Things to do in Las Cruces in December

December is a good month to visit Las Cruces, with average highs around 65°F. Museums and indoor sights come into their own, with fewer crowds outside.

Plan a December weekend Where else in December

Best picks for December

What's famous here, weighted toward what shines in December.

Trinity Site

1945 first detonation of a nuclear weapon

White Sands National Monument

national park in Otero and Doña Ana counties in New Mexico, United States

3Indoor escape

New Mexico Museum of Space History

aviation museum in Alamogordo, New Mexico, United States

Holidays in December 2026

Christmas Day · Fri, Dec 25

Expect busier roads and pricier stays around these dates. See long weekends.

Las Cruces in December: quick answers

Is December a good time to visit Las Cruces?

December is a good month to visit Las Cruces, with average highs around 65°F. Museums and indoor sights come into their own, with fewer crowds outside.

What is the weather like in Las Cruces in December?

Average daytime highs are around 65°F, compared with 96°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in Las Cruces in December?

Top picks for December: Trinity Site, White Sands National Monument, New Mexico Museum of Space History, Branigan Cultural Center, Deming-Luna-Mimbres Museum.