May in South Padre Island typically offers warm, sunny days ideal for beach activities and watersports. Average high temperatures hover around the mid-80s Fahrenheit (around 29-30C), while lows rarely dip below the low 70s Fahrenheit (around 21-22C). The Gulf of Mexico water temperature is generally pleasant for swimming, averaging in the low 80s Fahrenheit (around 27-28C). Rainfall is relatively low in May, making it a popular month to visit.
This period represents a sweet spot between the spring break crowds and the peak summer heat, providing visitors with comfortable conditions to enjoy the island’s attractions. Historically, May has marked the beginning of the prime tourist season on South Padre Island, as favorable weather conditions draw visitors seeking outdoor recreation and relaxation. The comfortable temperatures and sunshine make it an excellent time for activities like dolphin watching, fishing, kiteboarding, and simply enjoying the beach.