A tsakiyar kwari ne mai lowland yankin drained da Chao Phraya River da tributaries, kasar ta main kogin tsarin, wanda ciyar a cikin delta a kai na Bay na Bangkok. The Chao Phraya tsarin drains game da daya bisa uku na kasar ta ƙasa. A cikin arewa maso gabashin kasar da Khorat Plateau, wani yanki na gently mirgina low tuddai da kuma m tabkuna, drains a cikin Mekong ta hanyar Mekong. The Mekong tsarin hada da empties a cikin ta Kudu China Sea da jerin dams da kuma tashoshi Tambaya: Mene ne sanannun fasali na Thailand?
manyan duwatsu, wani fili na tsakiya, da kuma tudu mai tsawo