South Texas in March

October through April gives you perfect weather - sunny 70-80°F days with cool nights. December and January can dip into the 40s, but that's sweater weather, not parka weather. Spring brings wildflower blooms across the Hill Country, while fall offers ideal beach weather without summer's crushing humidity. Here's what nobody tells you: May through September is brutal. We're talking 95-105°F days with humidity that makes walking outside feel like a sauna. But summer also means cheaper hotels, no crowds at the missions, and perfect conditions for floating the rivers around New Braunfels. Hurricane season runs June through November, though direct hits are rare - just keep an eye on forecasts if you're heading to Corpus Christi. Winter is peak season in the Valley, when snowbirds from up north flock to places like McAllen and Brownsville for months-long stays.