Gatlinburg Tn December 2024 Weather. Expect gatlinburg december temperature around 11°c (52°f). The weather in gatlinburg in december is cold and breezy, with average highs of 50°f (10°c) and lows of 33°f (0°c).
Read clothing tips & recommended activities. Explore comprehensive december 2024 weather forecasts for gatlinburg, including daily high and low temperatures, precipitation risks, and monthly temperature trends.