Heavy rain forecast for 30 Thai provinces, including Bangkok

High likelihood of rainfall across the nation as typhoon threat still looms

Ryan Turner21 minutes agoLast Updated: Monday, October 13, 2025

80 2 minutes read

Heavy rain forecast for 30 Thai provinces, including Bangkok | Thaiger — Heavy flooding in Ubon Ratchathani province, October 3, 2022 | Photo via Nava Sangthong/AP Photo

Today, October 8, 2025, the Thai Meteorological Department (TMD) has forecasted increased rainfall, with heavy rain expected in approximately 30 provinces, including Bangkok. The TMD has issued a warning due to a persistent monsoon trough that is currently affecting the northern, central, and eastern regions of the country.

The conditions are a direct result of the monsoon trough coupled with prevailing weather systems in the region, bringing with them the risk of flash floods and surface water runoff in low-lying areas.

Regional weather updates

The central region is expected to have thunderstorms in 60% of the area, particularly in key provinces such as Kanchanaburi, Suphan Buri, Phra Nakhon Si Ayutthaya, Saraburi, Ratchaburi, Nakhon Pathom, Samut Songkhram, and Samut Sakhon. Temperatures will range from a minimum of 24 to 26 degrees Celsius (°C) to a maximum of 33 to 34 $^{\circ} C$ , with southwesterly winds at 10 to 20 kilometres per hour (km/h).

Bangkok and its vicinity will experience thunderstorms in 70% of the area, with some places seeing heavy rainfall. Temperatures will be slightly lower, with a minimum of 25 to 26 °C and a maximum of 32 to 34 °C.

In the north, 40% of the area will see thunderstorms, with heavy rainfall expected in Tak, Phitsanulok, Phichit, and Phetchabun. Temperatures will range from 22 to 25°C to highs of 32 to 35°C, with variable winds at 10 to 15 km/h.

The northeast is expected to have thunderstorms in 60% of the area, with significant rainfall in Chaiyaphum, Khon Kaen, Nakhon Ratchasima, Buriram, and Surin provinces. Temperatures here will be between 23 to 25 °C and 32 to 34°C, with easterly winds at 10 to 20 km/h.

The eastern region is set for a high probability of thunderstorms in 70% of the area, including heavy rain in Nakhon Nayok, Prachin Buri, Chanthaburi, and Trat. The minimum temperature will be 23 to 25°C, and the maximum temperature will be 31 to 33°C. Winds will be southwesterly at 15 to 30 km/h.

Along the coast, waves are expected to be about $1 metre$ high, increasing to more than $2 metres$ in stormy areas.

For the southern region (east coast), thunderstorms are expected in 60% of the area, with heavy rain in Surat Thani, Nakhon Si Thammarat, Songkhla, Pattani, and Narathiwat. The minimum temperature will be 23 to 25 °C, and the maximum temperature will be 31 to 35°C $. W$ aves will be around $1 metre$ high, exceeding $2 metres$ in areas with thunderstorms.

The Southern region (West Coast) is predicted to have thunderstorms in 40% of the area, mainly in Ranong, Phang Nga, Trang, and Satun. The minimum temperature will be 23 to 25 °C, and the maximum temperature will be 31 to 34°C $.$ Waves will be about $1 metre$ high, increasing to more than $2 metres$ during thunderstorms.