May in New Braunfels averages a daily high of 31.1°C with nights around 18.7°C. Expect roughly 8 wet days totalling 90.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit New Braunfels is October–April.
Based on NEW BRAUNFELS MUNICIPAL AIRPORT, TX US (9.3km), 1995–2024. 28 years of May data.