DDPM Warns Six Central Provinces and Bangkok to Monitor High Tides from 25-29 Aug

The Department of Disaster Prevention and Mitigation (DDPM) warns six central provinces and Bangkok to monitor the "high tide" situation from 25 to 29 August 2026, which may cause riverbanks to overflow and rising water levels to flood low-lying areas, including communities outside flood barriers.

On 25 August 2026 at 10:30 AM, Mr. Theerapat Kachamat, Director-General of the Department of Disaster Prevention and Mitigation (DDPM), announced that as the central disaster prevention command center, DDPM has received notification from the Hydrographic Department of the Royal Thai Navy in announcement no. 11/2569 dated 24 August 2026. It states that between 25 and 29 August 2026 from 5:00 PM to 8:00 PM, high tide levels are expected at the Phra Chulachomklao Fort area and nearby locations. This may cause riverbanks to overflow, with increased water levels in rivers and canals potentially flooding low-lying areas along waterways, including communities outside flood embankments and areas without permanent flood defenses.

The areas to monitor for high tide conditions from 25 to 29 August 2026 are as follows.

Six central provinces and Bangkok are included:

• Pathum Thani Province (Mueang Pathum Thani and Sam Khok districts).
• Nonthaburi Province (Mueang Nonthaburi, Pak Kret, and Bang Kruai districts).
• Nakhon Pathom Province (Bang Len, Nakhon Chai Si, and Sam Phran districts).
• Samut Sakhon Province (all districts).
• Samut Songkhram Province (all districts).
• Samut Prakan Province (Mueang Samut Prakan, Phra Samut Chedi, Phra Pradaeng, and Bang Bo districts).

The Central Disaster Prevention Command Center (CDPCC) under the Department of Disaster Prevention and Mitigation has coordinated with the six central provinces—Pathum Thani, Nonthaburi, Nakhon Pathom, Samut Sakhon, Samut Songkhram, and Samut Prakan—as well as Bangkok to monitor the high tide situation.

They have requested these provinces to inform the public about the high tide periods and to alert related agencies and private sector operators along rivers and canals, such as those involved in embankment construction and riverside restaurants. Residents living along riverbanks and in low-lying vulnerable areas are urged to closely monitor the situation and prepare accordingly.

Residents can follow disaster alerts via the "THAI DISASTER ALERT" application, report incidents and request assistance through the LINE account "DDPM Incident Report 1784," or call the 24-hour emergency hotline 1784.