Bangkok accelerates canal drainage and keeps watch for more rain
Bangkok drains canals and monitors further rain around noon. In a separate flood summary, authorities report 329,000 households affected and four deaths.
- Following heavy overnight rain, Bangkok authorities are accelerating drainage and lowering water levels in major canals to increase their capacity for more rainfall.
- The city is on high alert for another spell of rain, with forecasts predicting thundershowers across approximately 70% of the area.
- Officials are closely monitoring low-lying areas, flood-prone locations, and flood barriers, as several roads still have standing water from the earlier downpour.
Heavy rain fell across several parts of Bangkok between 1am and 3am, bringing an average accumulated rainfall of about 50mm, with the highest total of almost 100mm recorded in Sai Mai district, the Bangkok Metropolitan Administration (BMA) reported.
The rain had since moved out of the city, and the BMA said main roads had returned to normal.
However, the administration was stepping up drainage and lowering water levels in main canals to increase capacity for further rainfall.
The BMA said it had ordered close monitoring of another spell of rain expected around noon, with rainfall forecast across about 70% of the city.
Low-lying areas and flood-prone locations remained under close watch.
The administration was coordinating with relevant agencies and monitoring conditions continuously to prepare for further rain and reduce the impact on residents.
Water levels in the main canals, including Saen Saep, Prawet Burirom and Prem Prachakorn, had fallen to near-normal levels on Tuesday (October 6, 2026).
They continued to receive water from smaller canals, while efforts to lower water levels in other canals were continuing and being stepped up.
High water levels also required monitoring for water overtopping flood barriers, particularly along Khlong Hok Wa Sai Lang near the Pathum Thani border in Khlong Sam Wa, Nong Chok and Sai Mai districts.
The Thai Meteorological Department forecast thundershowers across 70% of Bangkok and surrounding provinces, with maximum temperatures of 33–35°C and minimum temperatures of 24–25°C.
Bangkok main-road flood update
The BMA’s update on main-road flooding, based on conditions as of 6.30am on October 6, listed the following locations for residents to check before travelling.
Roads dry and traffic normal, with exceptions
- Sai Mai Road: Dry along the entire road except at the entrance to Alley 27, where water remained on the road surface.
- Suwinthawong Road: Dry along the entire road except around Hathai Rat junction, where water was 5–10cm deep.
- Sihaburanukit Road: Dry along the entire road except at the entrance to Alley 10, where water had pooled in a depression in the left-hand lane.
- Luang Phaeng Road: The outbound section from Lat Krabang junction to Wat Phon Mani junction was dry, as was the section from Wat Phon Mani junction to Khlong Phraya Phet.
- On Nut Road: Dry along the entire road except in front of Alleys 57–59, where water was 5–10cm deep.
Slight flooding of 5–10cm, roads passable
- Phahonyothin Road: Water was 5–10cm deep from the Bangkok boundary to Phahonyothin Alley 79.
- Krungthep Kritha Road: Water was 5–10cm deep in front of Alleys 13–15 on the Thap Chang subdistrict side and in front of Alleys 47–53.
- Lat Krabang Road: Water was 5–10cm deep from Khlong Ta Phuk to King Kaeo junction and from Airport junction to Luang Phaeng Road.
- Luang Phaeng Road: Water was 5–15cm deep from Khlong Phraya Phet to the boundary.
Moderate flooding of 10–20cm, roads passable with caution
The following sections of Chalong Krung Road were listed:
- From Lam Phak Chi junction to Khlong Lam Makham: 5–15cm.
- From Khlong Lam Makham to Chao Khun Thahan junction: 5–10cm.
- From Chao Khun Thahan junction to Chalong Krung Alley 8: the side identified in the update as the even-numbered lanes was dry.
- On the side identified as the odd-numbered lanes: 10–15cm.
- From Chalong Krung Alley 8 to the motorway intersection: 5–15cm.
Other sections listed were:
- Luang Phaeng Road: Water was 15–20cm deep on the inbound side outside Lotus’s Lat Krabang.
- Lat Krabang Road: Water was 10–20cm deep from King Kaeo junction to Airport junction.
Heavy flooding of 20–30cm or more, small vehicles advised to avoid
- Chalong Krung Road: Water was 15–40cm deep near King Mongkut’s Institute of Technology Ladkrabang (KMITL). Small vehicles were prohibited from passing.
Flooding affects 329,000 Bangkok households and leaves four dead
The Department of Disaster Prevention and Mitigation reported that flooding in Bangkok had affected 329,000 households and left four people dead.
Overall water levels were falling.
