The temperature inside The Caverns is around 59 degrees year-round. It's a comfortable temperature for most, but you are in a cave, so please bring a jacket or a sweater in case you get chilly. In the summertime, the 59 degree temperature makes the cave feels refreshingly cool. In the wintertime, it feels warm and cozy. On hot summer days, it's not uncommon to see people dancing underground in shorts and t-shirts. But during winter months, most people wear long pants and layer up with jackets or sweaters. Be sure to wear comfortable shoes too!