Austin, Texas Weather in December

Mild days, cool evenings

December feels like a proper Austin winter, but afternoons are often mild. Highs reach 18°C, while evenings can dip to 6°C. Rain is occasional rather than constant, though cloudy spells can make the day feel cooler.

You can explore South Congress, browse shops on South First, or walk the trails around Lady Bird Lake without summer's heavy heat. Long swims and lazy lake days are less appealing now; save those for warmer months. The short daylight hours also mean you'll have less time for outdoor wandering.

Holiday lights and local traditions

The Trail of Lights at Zilker Park is a classic December outing, with decorated displays and holiday activities. Go for the lights, then warm up with a bowl of chili or tacos nearby. The Armadillo Christmas Bazaar is another Austin tradition, bringing artists and live music together during the holiday season.

Families can enjoy the festive displays at Zilker, though popular evenings feel busy. The city is usually calmer and less expensive than during major spring festival months, but holiday events and school breaks bring extra visitors. Christmas week can be especially lively.

A good time for city breaks

For couples who prefer strolls and live music to hot-weather pool days, December has plenty to offer. You can catch a show on Red River Street, then settle into a cosy evening on Rainey Street. Pack your day around the weather: keep outdoor plans flexible, and use a rainy spell for the Blanton Museum of Art or the Texas State Capitol.

For the Trail of Lights, check the event's current parking and shuttle details before heading to Zilker. Traffic around the park can slow your evening, and arriving without a transport plan may mean a longer walk than you expected.