Bangkok flood update lists 31 roads to avoid on Sept 27

SUNDAY, SEPTEMBER 27, 2026
Bangkok flood update lists 31 roads to avoid on Sept 27

Bangkok’s 8am flood update lists 31 roads to avoid, with 25 at 20cm or more, five at lower depths and no depth stated for On Nut Road.

  • An 8am flood update on September 27 advised Bangkok motorists to avoid 31 specific roads due to flooding.
  • On 25 of the listed roads, floodwaters were reported at 20 centimetres or higher, with some areas becoming impassable for small vehicles.
  • The warning was an expansion from the previous day, which had listed only 21 affected routes, indicating a worsening situation.

Motorists in Bangkok were advised to avoid 31 roads in an 8am flood update on Sunday (September 27), with water reported at 20 centimetres or more on 25 of the routes and lower levels on five others. No flood depth was specified for On Nut Road.

The citywide list broadened an earlier morning travel warning. At 7.57am, high water was reported on Lat Phrao Road from the Big C area towards Bang Kapi, where small vehicles were unable to pass. 

Bangkok flood update lists 31 roads to avoid on Sept 27

Flood update lists 31 Bangkok roads and affected stretches
The road-flooding monitoring update identified the following affected locations as of 8am:

1. Ram Inthra Road — 20cm or more: from Soi Ram Inthra 5 to Soi Ram Inthra 13/1.

2. Phahonyothin Road — 20cm or more: from Soi Phahonyothin 51 to Phalasin Road; near Prasert-Manukitch Road; and near Soi Phahonyothin 55.

3. Thep Rak Road — 20cm or more: from Phahonyothin Road to Soi Phahonyothin 50.

4. Watcharaphon Road — 20cm or more: near Soi Watcharaphon 3 and from Soi Watcharaphon 2/7 to Thep Rak Road.

Bangkok flood update lists 31 roads to avoid on Sept 27

5. Chaeng Watthana Road — 20cm or more: from Lak Si Square Soi 1 to the Lak Si Monument roundabout, and from Soi Chaeng Watthana 10 Yaek 1-1-6 to Kamphaeng Phet 6 Road.

6. Nawamin Road — 20cm or more: near Soi Nawamin 155; from Soi Nawamin 38 to Soi Nawamin 59 Yaek 1; and near Soi Nawamin 107.

7. Prasert-Manukitch Road — 20cm or more: near Nawamin Road.

8. Ramkhamhaeng Road — 20cm or more: from Soi Ramkhamhaeng 53 to Soi 55; from Soi 41/1 to Soi 43/1; from Soi 20 to Soi 13; from Soi 21 to Rama IX Road; and from Soi 35 to Soi 33.

9. Hua Mak Road — 20cm or more: near Soi Ramkhamhaeng 24.

10. Srinagarindra Road — 20cm or more: from Lam Sali intersection to Soi Srinagarindra 1, and from the service road along Bangkok–Chon Buri Road to the underpass at Phatthanakan intersection.

11. Sena Nikhom 1 Road — 20cm or more: from Soi Sena Nikhom 1 Soi 11 to Soi 22, and near Soi Sena Niwet 117/1.

12. Outbound Vibhavadi Rangsit Road — 20cm or more: at an affected section near Vibhavadi Rangsit Road.

13. Chang Akat Uthit Road — 20cm or more: from Soi Niwet Chao Fa to Soi Chang Akat Uthit 5.

14. Luang Phaeng Road — 20cm or more: from Soi Yukonrat to Pracha Phatthana Road.

15. Chao Khun Thahan Road — 20cm or more: from Soi Khum Klao 44 to Khum Klao Road; from Khum Klao Road to Soi Yuphon Phatthana Watthana; near the road behind the ICD; and near Soi Chalong Krung 17.

16. Sukhonthasawat Road — 20cm or more: near Soi Sukhonthasawat 27.

17. Chok Chai 4 Road — 20cm or more: near Soi Chok Chai 4 Soi 42 and from Soi Chok Chai 4 Soi 30 to Soi 29.

18. Lat Phrao Wang Hin Road — 20cm or more: from Soi Lat Phrao Wang Hin 83 to Chok Chai 4 Road.

19. Suwinthawong Road — 20cm or more: from Sihaburanukit Road to Hathai Rat Road.

20. Sihaburanukit Road — 20cm or more: near Soi Sihaburanukit 5.

21. Wachiratham Sathit Road — 20cm or more: near Soi Wat Thung.

22. On Nut Road — depth not specified: from Phatthanakan Road to Soi On Nut 84.

23. Sukhumvit 71 Road — 20cm or more: from Soi Pridi Banomyong 54 to Soi Pridi Banomyong 47.

24. Phatthanakan Road — 20cm or more: from Soi Phatthanakan 58 to Soi 57/1.

25. Lat Phrao Road — 20cm or more: from Soi Lat Phrao 87 to Soi 126, and from Soi Lat Phrao 112 to Soi Lat Phrao 122 Yaek 1.

26. Inthraphon Road — 20cm or more: from Town in Town Soi 2 to the Bodin Raksa Village area.

27. Nak Niwat Road — 15cm or more: from Soi Nak Niwat 40 to Soi 45.

28. Chaloem Phrakiat Rama IX Road — 15cm or more: near Soi Chaloem Phrakiat Rama IX 45.

29. Seri Thai Road — 10cm or more: near Soi Seri Thai 56.

30. Lat Krabang Road — 10cm or more: from Soi Lat Krabang 24/1 to King Kaeo Road.
31. Sukhaphiban 5 Road — 10cm or more: from Soi Sukhaphiban 5 Soi 41 to Soi 46.

Bangkok flood update lists 31 roads to avoid on Sept 27

Heavy rain keeps Bangkok travel risks elevated

The latest update follows several days of severe flooding across Bangkok. The Bangkok Metropolitan Administration has declared all 50 districts disaster-affected areas after persistent rain caused flooding, traffic disruption and difficulties for residents. 

The Thai Meteorological Department’s September 27 forecast said rain would continue across the Central region, including Bangkok and surrounding provinces, and warned people to avoid routes prone to repeated flooding, particularly low-lying areas where water can accumulate. 

The new list also represents a broader travel warning than the previous day, when a report identified 21 Bangkok routes to avoid and seven locations considered impassable for small vehicles.