Temperatures range from 80-100 degrees Fahrenheit. Cambodia , Phnom Penh, Kingdom of Cambodia, 1998. Cambodia is dominated by a mighty lake, the Tonle Sap, located roughly in its center. Once a year, due to the enormous amount of rain, the level of the Mekong River rises so much that the Tonle Sap River can no longer flow into it. The river reverses its direction and flows north into the lake, causing it to swell to triple its size.
Fish abound, and silt created by the river's reversal, make soil quite fertile.
The central half of Cambodia is a flat rolling plain. The Dangrek Mountains are located on the northern border with Thailand. Sandy beaches dot the south coast. Highlands lie to the east along the Vietnamese border. Beach at Sihanoukville.