DDPM reports 3.26m people hit by Thai floods on Oct 4

More than 3.26 million people remain affected by flooding in 27 provinces and Bangkok, the Department of Disaster Prevention and Mitigation (DDPM) said on Sunday, October 4, 2026, as further heavy rain threatens to complicate relief efforts. The Thai Meteorological Department has forecast thundershowers, gusty winds and isolated heavy to very heavy rain across upper Thailand from October 4–7. 

Nirat Pongsitthithaworn, director-general of the DDPM, said the Disaster Prevention and Mitigation Command Centre’s assessment at 6am on October 4 recorded 1,171,165 affected households, representing 3,262,676 people. Flooding covered 154 districts, 1,209 subdistricts and 8,790 villages in the 27 provinces, as well as Bangkok. 

The DDPM attributed the flooding to prolonged heavy to very heavy rain, compounded by large volumes of water flowing down from the North and adding to accumulated water in the Central region. Government agencies have mobilised personnel, equipment and disaster-response machinery to relieve hardship and accelerate drainage.

Bangkok recorded 329,000 affected households and four deaths, according to the DDPM. Water levels in the capital were beginning to fall, although standing water and Chao Phraya River levels remained under watch as authorities monitored downstream dam releases. 

Water continues rising in several Central provinces

The Central region remained a major receiving area for upstream water, with its basin-like terrain contributing to flooding. The DDPM’s assessment showed rising levels in several provinces despite improvements elsewhere. 

• Uthai Thani: Water levels were rising, with 4,785 households affected across 56 subdistricts and 413 villages. The eight affected districts were Nong Chang, Huai Khot, Sawang Arom, Ban Rai, Nong Khayang, Lan Sak, Mueang Uthai Thani and Thap Than.

• Sing Buri: Flooding affected 1,220 households in five subdistricts and 16 villages across In Buri, Phrom Buri and Mueang Sing Buri districts. Water levels were rising.
• Suphan Buri: Rising floodwater affected 28,453 households across 107 subdistricts and 923 villages. The 10 affected districts were Bang Pla Ma, Song Phi Nong, Don Chedi, Si Prachan, Mueang Suphan Buri, Sam Chuk, U Thong, Doem Bang Nang Buat, Dan Chang and Nong Ya Sai.
• Ang Thong: Flooding affected 1,938 households across 33 subdistricts and 129 villages in Pa Mok, Chaiyo, Wiset Chai Chan, Mueang Ang Thong and Samko districts. Water levels were rising.
• Ayutthaya: Flooding affected 53,457 households across 205 subdistricts and 1,345 villages, with one death reported and water levels rising. The 16 affected districts were Sena, Bang Ban, Phak Hai, Bang Sai, Phra Nakhon Si Ayutthaya, Bang Pa-in, Bang Pahan, Lat Bua Luang, Uthai, Nakhon Luang, Wang Noi, Tha Ruea, Phachi, Ban Phraek, Bang Saai and Maha Rat.
• Pathum Thani: Rising water affected 169,724 households across 62 subdistricts and 510 villages. The seven affected districts were Thanyaburi, Mueang Pathum Thani, Sam Khok, Khlong Luang, Lam Luk Ka, Nong Suea and Lat Lum Kaeo.
• Samut Prakan: Water levels were beginning to fall, although 223,346 households remained affected and eight deaths had been reported. Flooding covered 38 subdistricts and 382 villages across Bang Sao Thong, Phra Pradaeng, Bang Phli, Mueang Samut Prakan, Bang Bo and Phra Samut Chedi districts.

The DDPM also reported the following conditions elsewhere in the Central region:

• Lopburi: 975 households affected; water levels falling.
• Chai Nat: 5,473 households affected; water levels stable.
• Kanchanaburi: 8,937 households affected and two deaths reported; water levels falling.
• Saraburi: 1,983 households affected and one death reported; water levels falling.
• Nakhon Pathom: 4,214 households affected; water levels falling.
• Ratchaburi: 16,490 households affected; water levels falling.
• Samut Songkhram: 22,357 households affected; water levels falling.
• Phetchaburi: Six households affected; water levels stable.

Chachoengsao water rises as eastern flooding persists

Chachoengsao continued to face rising water, while other affected eastern provinces reported stable or declining levels, according to the DDPM. The regional figures showed extensive disruption even where floodwater was receding. 

• Chachoengsao: Flooding affected 58,960 households across 88 subdistricts and 728 villages, with water levels rising. The 11 affected districts were Bang Nam Priao, Bang Khla, Phanom Sarakham, Plaeng Yao, Tha Takiap, Mueang Chachoengsao, Sanam Chai Khet, Ban Pho, Bang Pakong, Khlong Khuean and Ratchasan.
• Nakhon Nayok: Water levels were stable, with 53,928 households affected across 44 subdistricts and 482 villages in Pak Phli, Mueang Nakhon Nayok, Ban Na and Ongkharak districts.
• Prachin Buri: Flooding affected 46,160 households across 65 subdistricts and 691 villages, with seven deaths reported and water levels falling. The seven affected districts were Kabin Buri, Na Di, Mueang Prachin Buri, Si Maha Phot, Prachantakham, Ban Sang and Si Mahosot.
• Chonburi: Water levels were falling, with 118,723 households affected across 78 subdistricts and 354 villages. The 10 affected districts were Mueang Chonburi, Sattahip, Phanat Nikhom, Si Racha, Bang Lamung, Ban Bueng, Nong Yai, Ko Chan, Phan Thong and Bo Thong.
• Sa Kaeo: 50 households affected and six deaths reported; water levels falling.
• Rayong: 810 households affected; water levels falling.
• Chanthaburi: 7,000 households affected and two deaths reported; water levels falling.

Northern and northeastern flood levels decline

Water levels were falling in the northern and northeastern areas listed in the DDPM assessment, although communities remained affected by flooding. The improvement followed the initial arrival of floodwater in the North.

In the North, the DDPM reported:

• Phetchabun: Flooding affected 82 households in four subdistricts and six villages across Si Thep, Wichian Buri and Nong Phai districts. Water levels were falling.
• Nakhon Sawan: Water levels continued to decline, with 13,013 households affected across 92 subdistricts and 514 villages. The 14 affected districts were Phayuha Khiri, Mae Wong, Takhli, Phaisali, Lat Yao, Banphot Phisai, Kao Liao, Mueang Nakhon Sawan, Chum Saeng, Tha Tako, Tak Fa, Krok Phra, Chum Ta Bong and Nong Bua.

In the Northeast, the DDPM reported:

• Buri Ram: Flooding remained in Chamni district, covering six subdistricts and 63 villages. Water levels were falling.
• Chaiyaphum: Flooding affected 81 households across eight subdistricts and 34 villages in Phu Khiao and Chatturat districts. Water levels were falling.
• Surin: Flooding remained in Sangkha district, covering two subdistricts and 36 villages. Water levels were falling.

Further rain forecast for Central, Eastern and Southern regions

The Thai Meteorological Department’s forecast for October 5–6 covers the North, Central region, Bangkok and surrounding provinces, the East and upper South. The forecast forms part of its October 4–7 warning for thundershowers, gusty winds and isolated heavy to very heavy rain over upper Thailand. 

Rainfall is expected to increase in the Central, Eastern and Southern regions during October 8–13, according to the weather outlook.

The DDPM urged residents in foothill communities, low-lying areas and communities along the Chao Phraya River to watch for flash floods, forest runoff and standing water. Riverside areas could also be affected by increased downstream dam releases.

DDPM prioritises vulnerable residents during rescue operations

The DDPM has deployed personnel and disaster-response machinery to pump water from flooded areas, reopen transport routes and move affected residents to safer locations, prioritising vulnerable groups.

The DDPM advised people in at-risk areas to:

• follow official information and warning announcements closely;
• prepare to evacuate and move belongings, electrical sockets and appliances to higher ground;
• avoid boating, travelling or driving through fast-flowing water; and
• stay away from large trees and unstable advertising signs during storms.

Officials will assess damage in areas where floodwater recedes so assistance can be provided under the relevant criteria, the DDPM said.

People needing emergency assistance can contact the DDPM’s 1784 hotline, available 24 hours a day, or add the LINE account @1784DDPM.