Floods affect 2.46 million people and block nine highway locations on October 12

Flooding continued to affect 2,458,895 people in 20 provinces and Bangkok as of 6am on October 12, 2026, according to the Department of Disaster Prevention and Mitigation (DDPM). The DDPM reported 908,595 affected households, with flooding covering 100 districts, 804 subdistricts and 5,947 villages. Water levels were rising in Phitsanulok and Phetchaburi, while conditions elsewhere were stable or improving.

The Department of Highways subsequently reported flooding at 74 highway locations in 13 provinces in its 9am update. Nine locations in five provinces were impassable.

Flooding persists in 20 provinces and Bangkok

The DDPM’s 6am assessment recorded the following affected areas, household figures, reported deaths and water-level trends.

Northern region

- Phitsanulok: Flooding affected Bang Rakam district, covering three subdistricts and five villages, with 63 households affected. Water levels were rising.

- Nakhon Sawan: Flooding affected nine districts: Phayuha Khiri, Takhli, Banphot Phisai, Kao Liao, Mueang Nakhon Sawan, Chum Saeng, Tha Tako, Krok Phra and Nong Bua. The affected area covered 77 subdistricts and 398 villages, with 5,953 households affected. Water levels were falling.

Central region

- Uthai Thani: Flooding affected Mueang Uthai Thani district, covering 10 subdistricts and 61 villages, with 1,080 households affected. Water levels were falling.

- Lop Buri: Flooding affected Ban Mi district, covering eight subdistricts and 33 villages, with 1,177 households affected. Water levels were falling.

- Chai Nat: Flooding affected Mueang Chai Nat, Wat Sing and Sapphaya districts, covering eight subdistricts and 41 villages, with 4,696 households affected. Water levels were falling.

- Sing Buri: Flooding affected In Buri, Phrom Buri and Mueang Sing Buri districts, covering 10 subdistricts and 37 villages, with 1,807 households affected. Two deaths were reported. Water levels were falling.

- Suphan Buri: Flooding affected eight districts: Bang Pla Ma, Song Phi Nong, Don Chedi, Si Prachan, Mueang Suphan Buri, Sam Chuk, U Thong and Doem Bang Nang Buat. The affected area covered 66 subdistricts and 540 villages, with 20,369 households affected. Five deaths were reported. Water levels were stable.

- Kanchanaburi: Flooding affected Dan Makham Tia, Mueang Kanchanaburi, Sangkhla Buri and Tha Muang districts, covering 12 subdistricts and 76 villages, with 227 households affected. Two deaths were reported. Water levels were stable.

- Ang Thong: Flooding affected Pa Mok, Chaiyo, Mueang Ang Thong, Wiset Chai Chan, Samko and Pho Thong districts, covering 47 subdistricts and 217 villages, with 2,728 households affected. Water levels were falling.

- Phra Nakhon Si Ayutthaya: Flooding affected 16 districts: 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 Sai (บางซ้าย) and Maha Rat. The affected area covered 205 subdistricts and 1,360 villages, with 68,168 households affected. One death was reported. Water levels were falling.

- Samut Prakan: Flooding affected Bang Sao Thong, Bang Phli and Bang Bo districts, covering eight subdistricts and 51 villages, with 6,530 households affected. Nine deaths were reported. Water levels were falling.

- Pathum Thani: Flooding affected Thanyaburi, Mueang Pathum Thani, Sam Khok, Khlong Luang, Lam Luk Ka, Nong Suea and Lat Lum Kaeo districts, covering 60 subdistricts and 507 villages, with 248,818 households affected. Two deaths were reported. Water levels were stable.

- Nakhon Pathom: Flooding affected Bang Len and Sam Phran districts, covering 31 subdistricts and 303 villages, with 21,488 households affected. Water levels were stable.

- Ratchaburi: Flooding affected Photharam, Mueang Ratchaburi, Damnoen Saduak, Ban Pong, Wat Phleng, Chom Bueng and Pak Tho districts, covering 27 subdistricts and 158 villages, with 11,689 households affected. Water levels were stable.

- Samut Songkhram: Flooding affected Mueang Samut Songkhram, Amphawa and Bang Khonthi districts, covering 33 subdistricts and 255 villages, with 15,870 households affected. Two deaths were reported. Water levels were stable.

- Phetchaburi: Flooding affected Kaeng Krachan, Tha Yang, Mueang Phetchaburi, Khao Yoi and Nong Ya Plong districts, covering 11 subdistricts and 16 villages, with 418 households affected. Water levels were rising.

Eastern region

- Nakhon Nayok: Flooding affected Pak Phli, Mueang Nakhon Nayok, Ban Na and Ongkharak districts, covering 40 subdistricts and 490 villages, with 53,490 households affected. Four deaths were reported. Water levels were stable.

- Prachin Buri: Flooding affected Kabin Buri, Mueang Prachin Buri, Si Maha Phot, Prachantakham, Ban Sang, Si Mahosot and Na Di districts, covering 65 subdistricts and 691 villages, with 59,269 households affected. Twenty-four deaths were reported. Water levels were falling.

- Chachoengsao: Flooding affected Bang Nam Priao, Bang Khla, Phanom Sarakham, Plaeng Yao, Mueang Chachoengsao, Ban Pho, Khlong Khuean and Ratchasan districts, covering 75 subdistricts and 667 villages, with 54,729 households affected. Four deaths were reported. Water levels were falling.

- Chon Buri: Flooding affected Phanat Nikhom and Phan Thong districts, covering eight subdistricts and 41 villages, with 1,026 households affected. Water levels were falling.

Bangkok

- Bangkok: Flooding affected 329,000 households, with four deaths reported. Water levels were falling.

Flood relief reaches 135,782 households

The DDPM reported that five rounds of flood relief payments had reached 135,782 households, with transfers totalling more than 1.069 billion baht.

Prime Minister and Interior Minister Anutin Charnvirakul, acting as national disaster prevention and mitigation commander, instructed all agencies to monitor conditions closely and accelerate assistance.

Anutin directed provincial governors to address prolonged flooding by revising their plans, setting clear completion deadlines and reporting progress until conditions improved.

Anutin also ordered provincial and district authorities, local administrative organisations and relevant agencies to verify outstanding relief applications and complete the required procedures promptly. Officials were instructed to work every day without a break so payments could reach affected residents as quickly as possible.

Anutin stressed that warnings should use clear, accessible language across all communication channels. Community leaders, public-address systems and radio communications should help relay alerts to residents.

Anutin also instructed agencies to remove rubbish and obstructions from drains, canals and waterways to improve drainage and reduce persistent flooding.

Nine highway locations remain impassable

The Department of Highways’ 9am assessment identified nine impassable locations in Kanchanaburi, Phetchaburi, Rayong, Chachoengsao and Prachin Buri.

• Kanchanaburi: Highway 3480, Plak Pradu–Tham Than Lot, km 30+109–30+121.
• Phetchaburi: Highway 4, Sa Phang–Khao Wang, at km 135+500.
• Rayong: Highway 3145, Ban Phe–Klaeng Port, km 9+300–9+500.
• Chachoengsao: Highway 3121, Bang Khla–Plaeng Yao, km 0+000–15+300.
• Chachoengsao: Highway 304, Chachoengsao–Samet Nuea, km 77+100–77+500.
• Prachin Buri: Highway 3076, Bang Hoi–Wang Khon, km 27+000–29+000.
• Prachin Buri: Highway 3481, Bang Khanak–Prachin Buri, km 26+000–27+500.
• Prachin Buri: Highway 3481, Bang Khanak–Prachin Buri, km 36+650–39+000.
• Prachin Buri: Highway 3079, Prachin Buri–Si Maha Phot, km 8+400–17+500.

The Department of Highways has deployed personnel to manage traffic, monitor conditions around the clock and assist residents until the situation improves.

The department urged motorists to travel cautiously and follow warning and advisory signs. Highway information and assistance are available through the free 24-hour hotline 1586 and the Highway Disaster Management System website.