The weak northeast monsoon prevails across the Gulf and easterly winds will bring thundershowers to the lower South.
The weather forecast for the next 24 hours is as follows:
Northern region: Cold with fog in the morning, lows 13-18 degrees and highs of 28-35 degrees Celsius. Temperature likely to drop to 3-12 degrees on hilltops.
Northeastern region: Cold with fog in the morning, lows 13-21 degrees and highs 32-35 degrees Celsius. Temperature likely to drop to 8-15 degrees on hilltops.
Central region: Cool with fog in the morning; lows 19-21 degrees, highs 34-35 degrees Celsius.
Eastern region: Cool with fog in the morning; lows 21-25 degrees, highs 33-35 degree Celsius; wave height 1 metre.
Southern region (east coast): Mostly cloudy with thunder showers in 30 per cent of the area; lows 23-24 degrees, high 29-33 degrees Celsius; wave height 1-2 metres, increasing to 2 metres during storms.
Southern region (west coast): Partly cloudy with thunder showers in 30 per cent of the area; lows 23-25 degrees, highs 30-33 degree Celsius; wave height 1 metre, increasing to 1-2 metres during storms.
Bangkok and surrounding area: Fog in the morning; lows 23-24 degrees, highs 33-35 degrees Celsius.