Flood risk areas beyond Bangkok are revealed as of 2 Oct 2026. The Chao Phraya River basin remains severely affected, with upstream waters beginning to overflow into Ayutthaya. It is crucial to monitor local rainfall that could worsen flooding. Meanwhile, communities outside flood barriers are preparing to move belongings to higher ground.
On 2 Oct 2026, the Thairath Online special news team continues monitoring flood risk areas and has compiled reports from the National Water Resources Office to provide timely information accessible to the public nationwide.
Flood risk information by region and river basin includes:
Chainat Province
- Thammamun Subdistrict, Mueang Chainat District
Phra Nakhon Si Ayutthaya Province
- Ban Pom Subdistrict, Phra Nakhon Si Ayutthaya District
- Pho Sam Ton Subdistrict, Bang Pa Han District
- Khanon Luang Subdistrict, Bang Pa In District
- Ban Krot Subdistrict, Bang Pa In District
Samut Prakan Province
- Bang Krasop Subdistrict, Phra Pradaeng District
- Bang Kachao Subdistrict, Phra Pradaeng District
- Bang Yo Subdistrict, Phra Pradaeng District
Bangkok Metropolitan Area
- Lat Phrao Subdistrict, Lat Phrao District
Phra Nakhon Si Ayutthaya Province
- Hua Wiang Subdistrict, Sena District
- Bang Luang Dot Subdistrict, Bang Ban District
- Sai Noi Subdistrict, Bang Ban District
- Saphan Thai Subdistrict, Bang Ban District
Phra Nakhon Si Ayutthaya Province
- Tha Ruea Subdistrict, Tha Ruea District
Suphan Buri Province
- Tha Phi Liang Subdistrict, Mueang Suphan Buri District
- Sam Chuk Subdistrict, Sam Chuk District
- Song Phi Nong Subdistrict, Song Phi Nong District
- Bang Ta Thoen Subdistrict, Song Phi Nong District
Phitsanulok Province
- Chum Saeng Songkhram Subdistrict, Bang Rakam District
- Bang Rakam Subdistrict, Bang Rakam District
Phetchabun Province
- Na Chaliang Subdistrict, Nong Phai District
- Sa Pradu Subdistrict, Wichian Buri District
Prachinburi Province
- Bo Thong Subdistrict, Kabin Buri District
- Mueang Kao Subdistrict, Kabin Buri District
- Prachantakham Subdistrict, Prachantakham District
- Ban Tham Subdistrict, Si Maha Phot District
- Si Maha Phot Subdistrict, Si Maha Phot District
- Na Mueang Subdistrict, Mueang Prachinburi District
Chachoengsao Province
- Koh Khunun Subdistrict, Phanom Sarakham District
- Bang Khanak Subdistrict, Bang Nam Priao District
Rayong Province
- Ban Na Subdistrict, Klaeng District
- Krasae Bon Subdistrict, Klaeng District
Chanthaburi Province
- Wang Mai Subdistrict, Na Yai Am District
Kanchanaburi Province
- Tha Sao Subdistrict, Sai Yok District
- Lum Sum Subdistrict, Sai Yok District
- Nong Ya Subdistrict, Mueang Kanchanaburi District (moved from Mae Klong Basin)
Kanchanaburi Province
- Lat Ya Subdistrict, Mueang Kanchanaburi District
- Lum Rang Subdistrict, Bo Phloi District
Kanchanaburi Province
- Wang Khanai Subdistrict, Tha Muang District
Ratchaburi Province
- Ban Pong Subdistrict, Ban Pong District
- Boek Phrai Subdistrict, Ban Pong District
1. Chi River Basin
Nakhon Ratchasima Province
- Kut Phiman Subdistrict, Dan Khun Thot District
2. Mun River Basin
Surin Province
- Tra Saeng Subdistrict, Mueang Surin District