Thailand will remain cool at least until Monday, with temperatures plunging further in the North and Northeast due to a strong high pressure system from China.

The latest warning from the Meteorological Department issued on Thursday forecast that cold weather would continue through Monday, with the temperature dropping by 6-8 degrees Celsius in the upper part of the country.

Temperatures in Greater Bangkok will be in the region of 13C and 18C during the period, with strong winds in the southern region, particularly Chumphon and Surat Thani provinces, the weather bureau said.

Weather in Bangkok on Thursday was 18C and the coldest province was Nakhon Phanom, with 8C.

Historically, Sakon Nakhon is the coldest place in Thailand, which saw minus 1.4C  in 1974.

In Nakhon Ratchasima province of the lower Northeast, park rangers at the Thap Lan National Park in Soeng Sang district had to monitor Yoyo, a 60-year-old male wild elephant, which was recovering from injuries after being attacked by other elephants in the park.

A Thap Lan official said Yoyo's condition was improving but the elephant was still afraid of returning to the jungle to mingle with other elephants.