Meanwhile, the strong northeast monsoon prevailing across the Gulf and the South triggers strong wind waves in the Gulf up to 2-4 metres high. All ships should proceed with caution and small boats should keep ashore until January 13, the department said.
The weather forecast for the next 24 hours:
North: Cold weather with strong winds; minimum temperature 12-15 degrees Celsius, maximum 24-31°C; temperature on hilltops is likely to drop to 3-11°C with frost in some areas.
Northeast: Cold to very cold weather with strong winds; minimum temperature 8-12°C, maximum 21-24°C; temperature on hilltops is likely to drop to 5-11°C.
Central: Cool to cold weather with strong winds; minimum temperature 14-17°C, maximum 27-28°C.
East: Cool to cold weather with strong winds; minimum temperature 14-21°C, maximum 27-31°C; waves two metres high and over two metres offshore.
South (east coast): Cool weather with strong winds and thundershowers in 30 per cent of the areas; minimum temperature 18-23°C, maximum 27-30°C; waves 2-4 metres high and over four metres during thundershowers.
South (west coast): Mostly cloudy with thundershowers in 20 per cent of the areas; minimum temperature 21-24°C, maximum 30-32°C; waves 1-2 metres high and two metres offshore.
Bangkok and surrounding areas: Cool weather with strong winds; minimum temperature 16-18°C, maximum 27-29°C.