Heavy rainfall is set to impact 41 provinces across Thailand today, July 12, with the Meteorological Department of Thailand (TMD) predicting significant precipitation in regions including the northeast, central, and eastern parts of the country. The Bangkok metropolitan area is expected to see rain over 60% of its expanse.
Over the next 24 hours, a southwest monsoon will cover the Andaman Sea, Thailand, and the Gulf of Thailand, while a low-pressure system will hover over northern Vietnam. This combination will lead to thunderstorms and heavy rain in various parts of Thailand.
The northern region will experience thunderstorms affecting 40% of the area, particularly in Chiang Mai, Chiang Rai, Phayao, Nan, Phrae, Phitsanulok, and Phetchabun. Temperatures will range from 23 to 26 degrees Celsius (°C) at the lowest to 33 to 36°C at the highest.
In the northeastern region, thunderstorms are expected over 60% of the area, with some heavy rainfall in Nong Khai, Bueng Kan, Udon Thani, Sakon Nakhon, Nakhon Phanom, Mukdahan, Yasothon, Amnat Charoen, Sisaket, and Ubon Ratchathani. The temperature will be between 24 to 25°C at the lowest and 33 to 36°C at the highest.
The central region will see thunderstorms in 60% of the area, with heavy rain in Lopburi, Saraburi, Ayutthaya, Nakhon Pathom, and Samut Sakhon. The lowest temperature will be around 24 to 25°C, with the highest reaching 34 to 36°C.
In the eastern region, thunderstorms will cover 70% of the area, with heavy rain expected in Nakhon Nayok, Prachinburi, Chachoengsao, Chon Buri, Rayong, Chanthaburi, and Trat. The lowest temperature will be 23 to 25°C, with the highest between 30 to 34°C. Sea waves will be 1 to 2 metres high, and areas with thunderstorms may see waves exceeding 2 metres.
High seas
The southern region (eastern coast) will have 40% of its area affected by thunderstorms, primarily in Chumphon, Surat Thani, Nakhon Si Thammarat, Phatthalung, and Songkhla. Temperatures will range from 23 to 26°C at the lowest to 33 to 35°C at the highest.
Seas from Surat Thani upwards will experience waves of 1 to 2 metres, with areas of thunderstorms seeing waves over 2 metres. From Nakhon Si Thammarat downwards, sea waves will be around 1 metre, with areas of thunderstorms seeing waves exceeding 1 metre.
The southern region (western coast) will have 60% of the area experiencing thunderstorms, with heavy rain in Ranong, Phang Nga, and Phuket. The lowest temperature will be 24 to 26°C, with the highest between 30 to 34°C. Seas from Phuket upwards will have waves of 1 to 2 metres, with stormy areas seeing waves over 2 metres. From Krabi downwards, sea waves will be around 1 metre, with stormy areas seeing waves exceeding 1 metre.
Bangkok and its vicinity will face thunderstorms affecting 60% of the area, with some heavy rainfall. The lowest temperature will be 25 to 26°C, and the highest will range between 33 to 35°C.
The TMD advises residents to stay updated with the latest weather forecasts and be prepared for the potential impacts of heavy rainfall.
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