October 27: Heavy rain forecast for 16 provinces in Thailand on October 27
South under threat of rain, while cooler mornings are expected up north
The Meteorological Department is predicting heavy rain today, October 27, in 16 provinces, particularly in the south, where 60% of the area is expected to be affected. Bangkok and its vicinity are also warned to exercise caution due to adverse weather conditions. Meanwhile, temperatures in upper Thailand are expected to rise slightly.
Heavy rain is primarily expected in the central and southern regions of Thailand. The monsoon trough across the central south and a moderate northeast monsoon covering the upper Gulf of Thailand, upper south, and upper Andaman Sea are the culprits.
Regional forecasts (6am today to 6am tomorrow)
The forecast for northern Thailand indicates cool mornings and slight temperature increases, with occasional light rain. Temperatures range from 19 to 23 degrees Celsius (°C), peaking at 31 to 34°C. Mountain areas will be colder, with lows of 9 to 15°C and northeast winds at 10 to 15 kilometres per hour (km/h).
Similarly, cool mornings are expected in the northeast, with slight temperature rises and 10% of the area expecting rain, mainly in Yasothon, Amnat Charoen, Sisaket, and Ubon Ratchathani. Temperatures vary from 20 to 23°C to highs of 30 to 33°C. Cooler conditions are expected in mountainous regions, ranging from 13 to 16°C and northeast winds at 10 to 25km/h.
In central Thailand, expect mostly cloudy skies and slight temperature increases with sporadic light rain. Temperatures will be between 23 to 25°C, and 32 to 34°C, with northeast winds at 10 to 20km/h.
Eastern Thailand will also see mostly cloudy skies, slight temperature increases, and 10% of the area experiencing rain, primarily in Sa Kaeo, Rayong, Chanthaburi, and Trat. Temperatures range from 23 to 26°C to highs of 32 to 33°C, with northeast winds at 15 to 35km/h. Sea waves of around 1 metre are expected, rising to 1 to 2 metres offshore and over 2 metres during storms.
In the south (eastern coast), 60% of the area will encounter thunderstorms and isolated heavy rain, notably in Prachuap Khiri Khan, Chumphon, Surat Thani, and Nakhon Si Thammarat, with temperatures from 24 to 25°C to highs of 29 to 33°C.
From Chumphon northward, northeast winds at 15 to 35km/h will create 1 to 2 metre waves, exceeding 2 metres in storms. From Surat Thani southward, variable winds at 15 to 30km/h will produce 1 metre waves, rising during storms.
The south (western coast) will have thunderstorms in 60% of the area and isolated heavy rain in Ranong, Phang Nga, and Phuket. Temperatures range from 24 to 25°C to highs of 29 to 34°C.
From Phang Nga northward, east winds at 15 to 30km/h will result in 1 metre waves, increasing offshore and during storms. From Phuket southward, variable winds at 15 to 30km/h will produce similar wave conditions.
Bangkok and its vicinity should expect mostly cloudy skies and slight temperature increases with occasional light rain. Temperatures will vary from 24 to 26°C to highs of 32 to 34°C, with northeast winds at 10 to 20km/h.
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