Heavy rain is forecast in 19 provinces today. The Central region, East and South bear the brunt of the downpours. Bangkok can expect scattered thundershowers, with highs reaching 35°C.
The Thai Meteorological Department warns that accumulated rain may trigger flash floods. Overflows and landslides are possible near waterways and foothills.
A high-pressure system from China covers the upper North, upper Northeast and the South China Sea. Easterly and southeasterly winds draw moisture from the South China Sea toward Thailand and the Gulf. This produces thundershowers with gusts across the North, Central, East and South.
Bangkok
The capital sees scattered thundershowers through the forecast period. Lows of 25-27°C and highs of 33-35°C are expected. Southeasterly winds of 10 to 20km/h are forecast.
North
Scattered thundershowers with gusts bring isolated heavy rain to Tak and Kamphaeng Phet. Phetchabun also faces the downpours. Lows of 21-25°C and highs of 33-36°C are forecast, with easterly winds of 10 to 20km/h.
Northeast
Isolated thundershowers with gusts affect Loei, Chaiyaphum and Nakhon Ratchasima. Buri Ram, Surin, Si Sa Ket and Ubon Ratchathani also see the activity. Lows of 22-25°C and highs of 31-35°C are expected, with easterly winds of 10 to 25km/h.
Central
Scattered thundershowers bring isolated heavy rain to Nakhon Sawan, Uthai Thani and Chai Nat. Suphan Buri, Phra Nakhon Si Ayutthaya, Kanchanaburi and Ratchaburi face the same conditions. Lows of 23-25°C and highs of 32-34°C are forecast. Southeasterly winds of 10 to 20km/h are expected.
East
Scattered thundershowers bring isolated heavy rain to Nakhon Nayok and Chonburi. Rayong, Chanthaburi and Trat also face the downpours. Lows of 24-26°C and highs of 31-35°C are expected, with southeasterly winds of 10 to 30km/h. Waves stay below a metre but rise above 2 metres in thundershowers.
South (east coast)
Scattered thundershowers bring isolated heavy rain to Phetchaburi and Surat Thani. Nakhon Si Thammarat, Songkhla, Yala and Narathiwat see the same activity. Lows of 22-25°C and highs of 30-35°C are forecast, with southeasterly winds of 15 to 30km/h. Waves reach about 1 metre, rising above 2 metres in thundershowers.
South (west coast)
Scattered thundershowers bring isolated heavy rain to Ranong and Phang Nga. Satun also faces the downpours. Lows of 23-25°C and highs of 31-35°C are expected, with easterly winds of 15 to 30km/h. Waves reach about 1 metre, rising above 2 metres in thundershowers.
Warnings
Residents in affected areas should watch for flash floods near waterways and foothills. Overflows and landslides remain a risk in these zones. Ships in the Andaman Sea and the Gulf should steer clear of thundershowers, where waves exceed 2 metres.
Source: Thai Meteorological Department daily forecast, announcement of 15 October 2026.
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