Totaling area in Thailand is about 513,120 square kilometres (198,120 sq mi).

Thailand is the world's 50th largest country in land mass, while it is the world's 20th largest country in terms of population. The local climate is tropical and characterized by monsoons is a rainy, warm, and cloudy southwest monsoon froom mid-May to September, cool northeast monsoon from November to mid-March. The southern is always hot and humid.