Severe floods swamped roads as rain battered southern Thailand today.

Footage shows streets submerged in the deluge as floodwater surged into homes in Songkhla province on November 28.

Residents moved their motorcycles and other belongings to higher ground as continuous torrential downpours caused the water level to rise.

The Thai Meteorological Department (TMD) issued a weather advisory warning of heavy rainfall in the south, strong winds and waves over the lower Gulf of Thailand, and cool to cold weather in the upper part of the country.

The department reported that a moderate to rather strong high-pressure system from China would extend over upper Thailand and the South China Sea.

The northeast monsoon prevailing over the Gulf of Thailand and the South was expected to strengthen, while an active low-pressure cell over the lower South China Sea would move through the lower South and Malaysia into the lower Andaman Sea.

Heavy to very heavy rains were predicted in several southern provinces, including Songkhla.

The TMD urged residents in affected areas to be cautious of flash floods and overflows, especially near waterways, foothills, and low-lying areas.

The strengthening winds were expected to cause waves in the upper Gulf and the Andaman Sea to reach about 6.6 feet (2 metres) and exceed 6.6 feet (2 metres) in thundershowers.

In the lower Gulf, waves were forecast to rise between 6.6ft and 9.8ft, exceeding 9.8ft (3m).