Heavy rain and strong waves expected in parts of Thailand, ships urged to proceed with caution
Heavy rain likely in the Northeast, East, and South (west coast) with waves up to 2m; ships in Andaman Sea and Gulf advised to avoid thundershowers.
Thailand’s Meteorological Department reported on Wednesday that the monsoon trough is lying across the upper North of Thailand and Laos into a low-pressure cell covering Laos and upper Vietnam, while a moderate southwest monsoon prevails over the Andaman Sea, Thailand, and the Gulf.
Isolated heavy rain is likely in the Northeast, the East, and the South (west coast). Residents in these areas should be alert for heavy rainfall and water accumulation that may cause flash floods and overflows, particularly near waterways, foothills, and lowlands.
Moderate winds are generating waves in the upper Andaman Sea of around 2 metres, rising above 2 metres in areas with thundershowers. In the upper Gulf and the lower Andaman Sea, waves are expected to be 1–2 metres high, also exceeding 2 metres during thundershowers. All vessels in the Andaman Sea and the Gulf should navigate with caution and keep clear of stormy areas.
Meanwhile, Typhoon “Podul” over the Pacific Ocean is forecast to make landfall in Taiwan tonight (13 August) before moving into eastern China. The storm poses no threat to Thailand.
For those planning to travel to Taiwan and China between 12 and 14 August 2025, it is advised to check the weather conditions and closely follow updates from relevant authorities before departure for safety.
The weather forecast for the next 24 hours is as follows:
North: Scattered thundershowers mostly in Chiang Mai, Chiang Rai, Phayao, Nan, Uttaradit, Tak, Phitsanulok, and Phetchabun; minimum temperature 23-25 degrees Celsius, maximum 32-35°C.
Northeast: Fairly widespread thundershowers and isolated heavy rains in Nong Khai, Bueng Kan, Udon Thani, Sakon Nakhon, Nakhon Phanom, Mukdahan, Amnat Charoen, and Yasothon; minimum 23-26°C, maximum 34-35°C.
Central: Scattered thundershowers mostly in Uthai Thani, Lop Buri, Saraburi, Kanchanaburi, Ratchaburi, Nakhon Pathom, and Ayutthaya; minimum 23-27°C, maximum 32-35°C.
East: Fairly widespread thundershowers and isolated heavy rains in Nakhon Nayok, Prachin Buri, Sa Kaeo, Chachoengsao, Chon Buri, Chanthaburi, and Trat; minimum 23-27°C, maximum 32-35°C; waves 1-2 metres high and above 2 metres high in thundershowers.
South (east coast): Scattered thundershowers mostly in Chumphon, Surat Thani, and Nakhon Si Thammarat; minimum 23-25°C, maximum 33-35°C; waves about a metre high and above 2 metres high in thundershowers.
South (west coast): Fairly widespread thundershowers and isolated heavy rains in Ranong, Phang Nga, Phuket, and Krabi; minimum 23-25°C, maximum 30-34°C; waves about 2 metres high and above 2 metres high in thundershowers.
Bangkok metropolitan area: Scattered thundershowers; minimum 25-26°C, maximum 34-36°C.
