The Thai Meteorological Department forecasts heavy rain in 9 provinces today, 30 September 2026. Bangkok can expect isolated showers, with lows and highs of 25-35°C.
The southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf is weakening while the southerly and southeasterly winds prevail over the lower South. Less rain and isolated thundershowers are forecast in the country while isolated heavy rain is possible in the South. People in the South should beware of heavy rain and accumulation.
Bangkok
Isolated thundershowers. Minimum temperature 25-27°C. Maximum temperature 33-35°C. Southerly winds 10-25 km/h.
North
Isolated thundershowers mostly in Mae Hong Son, Chiang Mai, Lamphun, Tak, Phitsanulok, and Phetchabun. Minimum temperature 22-25°C. Maximum temperature 31-35°C. Southwesterly winds 10-20 km/h.
Northeast
Isolated thundershowers mostly in Loei, Chaiyaphum, Nakhon Ratchasima, Buriram, Surin, Sisaket, and Ubon Ratchathani. Minimum temperature 23-25°C. Maximum temperature 33-35°C. Southerly winds 10-20 km/h.
Central
Isolated thundershowers mostly in Nakhon Sawan, Uthai Thani, Kanchanaburi, Ratchaburi, Samut Sakhon, and Samut Songkhram. Minimum temperature 22-25°C Maximum temperature 33-35°C. Southerly winds 10-20 km/h.
East
Isolated thundershowers mostly in Sa Kaeo, Chonburi, Rayong, Chanthaburi, and Trat. Minimum temperature 24-26°C Maximum temperature 32-34°C. Southerly winds 15-30 km/h. Wave height about 1 meter and above 2 meters in thundershowers.
South (east coast)
Scattered thundershowers and isolated heavy rains in Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, and Yala. Minimum temperature 22-25°C Maximum temperature 32-35°C. Southerly winds 15-30 km/h. Wave height about 1 meter and above 2 meters in thundershowers.
South (west coast)
Scattered thundershowers and isolated heavy rains in Phang Nga, Krabi, Trang, and Satun. Minimum temperature 24-26°C Maximum temperature 30-34°C. Phang Nga northward: Southwesterly winds 15-35 km/h. Wave height 1-2 meters and above 2 meters in thundershowers. Phuket southward: Southwesterly winds 15-30 km/h. Wave height about 1 meter and above 2 meters in thundershowers.
Source: Thai Meteorological Department daily forecast, announcement of 30 September 2026.
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