Heavy Rain Risk Area — Nakhon Sri Thammarat Pang Nga Surat Thani Ranong Chumphon Songkhla Yala Narathiwat, Thailand

The high-pressure system from China covers upper Thailand while the easterly wind prevails over the Gulf and the South. Isolated heavy rains are forecast in the South while less rains and isolated thundershowers are forecast in the upper country especially in the western part of the North and the Central and the East regions. People in the South beware of heavy rains and accumulations that may cause flash flood and overflows, especially along the waterways near foothills and lowlands. For the Andaman Sea and the Gulf, waves will be higher than 2 meters high in thundershower areas. All ships should keep off thundershowers. In addition, during 9-13 October 2026, the another high pressure system from China will extend to cover the Northeast and the South China Sea leading to the monsoon trough move down to lies across the East, the upper South. Meanwhile the moderate southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf. More rain with isolated heavy to very heavy rains are forecast in the East, the Central including Bangkok and vicinity and the South. During this period,