The department also said that the tropical depression covering the Philippines will move to the south of China during June 13-16, causing the southwest monsoon that prevails over the Andaman Sea and Thailand to intensify and result in more rain and isolated heavy rain.
The weather forecast for the next 24 hours is as follows:
Northern region: Mostly cloudy with thundershowers in 30 per cent of the areas; temperature lows of 24-27 degrees Celsius and highs of 36-39°C.
Northeastern region: Mostly cloudy with thundershowers in 30 per cent of the areas; temperature lows of 25-27°C and highs of 34-37°C.
Central region: Mostly cloudy with thundershowers in 30 per cent of the areas; temperature lows of 23-25°C, highs of 34-37°C.
Eastern region: Mostly cloudy with thundershowers in 30 per cent of the areas; temperature lows of 24-27°C, highs of 32-37°C; waves a metre high and two metres during thundershowers.
Southern region (east coast): Mostly cloudy with thundershowers in 60 per cent of the areas; temperature lows of 24-26°C, highs of 32-35°C; waves a metre high and two metres during thundershowers.
Southern region (west coast): Mostly cloudy with thundershowers in 40 per cent of the areas; temperature lows of 23-26°C, highs of 33-34°C; waves 1-2 metres high and two metres during thundershowers.
Bangkok and surrounding areas: Mostly cloudy with thundershowers in 30 per cent of the areas; temperature lows of 26-27°C, highs of 34-37°C.