There is less wind power from China and you can travel every beach area
Andman ocean, I recommend to visit Similan and Surin island and see Hin Dean and Hin Muang to see soft coral . Visiting Phi Phi Island, Trang , Koh Ngai, Koh Mook, Koh Krandan, Koh Rok, Koh Ha, Talutao, Loa leang, Adang, Rawee
Aothai or Thai gulf which is including Koh Tao, Koh Nangyuan, Koh Samui, Koh Angthong, Pattaya, Sattahip, Sameasan, Koh Samed, Koh Chang, Koh Kood.