During 11-12 Aug, Monsoon trough lies across the North and the upper Northeast and the southwest monsoon covers the Andaman Sea, the South and the Gulf of Thailand will weaken so that upper Thailand likely have less rain but the East and the South will have isolated heavy rain.
During 13-17 Aug, Monsoon trough lies across the upper Thailand and Laos the southwest covers the Andaman Sea, the South and the Gulf of Thailand likely remain to weaken