A strong thunderstorm slammed into Bangkok before dawn on Wednesday, with floods reported in some areas across the city.
Traffic jams appeared likely as rush hour got under way and the rain continued into a second consecutive hour.
The Bangkok Metropolitan Administration said rain was detected throughout the capital.
Among the hardest hit were areas along the Chao Phraya River. The BMA's disaster prevention and mitigation office said Min Buri district and next-door Nong Chok were hit by dowpours with rainfall of 89mm.
Sukhumvit Road in Bang Na district and some sections on Lat Phrao and Ramkhamhaeng areas were flooded, according to traffic radio stations.
The Meteorological Department said rain was possible in other areas of the country through Thursday, although the nation is in the middle of the so-called cool season, which is mostly. Temperatures will drop by 4-6°C later in the week, the weather forcast agency added.
