Sai Thong Subdistrict, Thailand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sai Thong Subdistrict is known for Khao Sam Roi Yot National Park. The best time to travel to Sai Thong Subdistrict, Thailand, is from November to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!