Northern, northeastern, and central Thailand will experience cooler temperatures and strong winds until Sunday, driven by a new moderate cold front from China.
Temperatures are forecast to drop significantly, with the northeast seeing a 2-4°C decrease and northern/central regions a 1-3°C fall.
Southern regions anticipate rough seas, with 2-meter waves in the Gulf of Thailand and 1-2 meter waves in the Andaman Sea.
Bangkok will also be cooler and windy, with temperatures dropping 1-2°C, though PM2.5 pollution levels will remain moderate due to poor air circulation.
Torrential downpours forecast nationwide
18 Oct 12:46Key points summarised by AI
Thailand's Meteorological Department issued its first severe weather warning for heavy to very heavy rainfall from October 18-25.
The warning covers potential flash floods, forest runoffs, and landslides across southern, eastern, northeastern, and central regions, including greater Bangkok.
The severe weather will unfold in two distinct phases, intensifying and expanding its footprint across various parts of the country.
Authorities urge communities in vulnerable areas to remain on high alert, with disaster response agencies placed on standby to assist residents.