Thailand Area: 513,120 sq km Land: 510,890 sq km Water: 2,230 sq km Ratio to U.S: Slightly more than twice the size of Wyoming. Bordered by: Burma, Cambodia, Laos, and Malaysia Boundary Length: 4,863 km Coast Length: 3,219 km Climate: Tropical; rainy, warm, cloudy southwest monsoon (mid-May to September); dry, cool northeast monsoon (November to mid-March); southern isthmus always hot and humid. Terrain: Central plain; Khorat Plateau in the east; mountains elsewhere. Lowest Point: 0 m Highest Point: 2,576 m