Khemarak Phoumin sits on Cambodia’s Gulf of Thailand coast, where the southwest monsoon from May through October brings the country’s most direct rainfall, occasionally intensified by the remnants of tropical storms crossing from the South China Sea.
Koh Kong’s provincial capital sits near the Thai border on a heavily forested coast that receives some of Cambodia’s highest rainfall totals. Because the coastal plain here is generally flat and low-lying, sustained monsoon downpours can cause local flooding independent of the Mekong basin’s much larger flood pulse further inland, making radar useful for tracking these more localized coastal rain systems. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map