Heavy to very heavy isolated rain is expected to prevail over the North, Northeast, East and South of Thailand for the next week, the weather office warned on Thursday.
The storms, from Aug 11 to 17, will be brought by southwest monsoon trough lying across Myanmar, the North and Upper Northeast, coupled with the low pressure cell over upper Vietnam, the Meteorological Department said.
Wind waves in the Andaman Sea and the Gulf of Thailand were expected to be 2-4 metres high during that period.
All vessels in the area were advised to proceed with caution, and small boats should stay ashore.