Commuters spent more time on the roads trying to reach their workplaces and one staff member told the Nation that it had taken her almost three hours to get into work as opposed to the usual journey time of one hour.

One of the roads hardest hit by the congestion was Bangna-Trat, with the the inbound lanes backed up for several kilometres before the expressway gate toll.

Meanwhile in Nakhon Ratchasima province, heavy rains led to flash flooding in many districts. In some areas, cars were submerged, bringing the traffic to a complete standstill.

The Meteorological Department has warns of variable weather conditions in the north, the lower northeast, the central and the east until Wednesday.