Webget the latest topsail island beach weather updates, including current water temperatures, surf conditions, and live webcams for north topsail beach, surf city, and. In winter 61°f, in spring 66°f, in summer 81°f, in autumn 74°f. Webaverage annual water temperature on the coast in topsail beach is 71°f, by the seasons:

Sunny with warm air temperatures at topsail. Learn about unique regional weather. Webtoday's topsail island sea temperature is 25. 5 °c.