Bangkok and 38 provinces face thundershowers on November 4

The Thai Meteorological Department (TMD) forecasts thundershowers in Bangkok and surrounding areas and identifies 38 provinces likely to be affected on November 4, 2026, with gusty winds and isolated heavy rain in some areas. The forecast covers 6am on November 4 to 6am on November 5, Thailand time.

The TMD attributes the unsettled conditions to a high-pressure system, or cool air mass, extending from China over the Northeast and the South China Sea, alongside easterly winds prevailing over the Gulf of Thailand, Thailand and the Andaman Sea.

Bangkok, Central region and East face isolated heavy rain

Bangkok and surrounding areas are forecast to have thundershowers across 60% of the area during November 4–5, accompanied by gusty winds and isolated heavy rain, according to the TMD. Minimum temperatures will be 24–26°C and maximums 33–35°C, with southeasterly winds of 10–20 km/h. 

In the Central region, the TMD’s November 4–5 forecast puts thundershower coverage at 40%, with gusty winds and isolated heavy rain in Lopburi, Saraburi, Phra Nakhon Si Ayutthaya, Suphanburi, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Songkhram and Samut Sakhon. Minimum temperatures will be 23–26°C and maximums 33–35°C, with easterly winds of 10–20 km/h.

The East will see thundershowers across 60% of the region during November 4–5, with gusty winds and isolated heavy rain in Nakhon Nayok, Chachoengsao, Chonburi, Rayong, Chanthaburi and Trat, according to the TMD. Minimum temperatures will be 23–25°C and maximums 32–35°C, with southeasterly winds of 10–30 km/h. Waves will remain below 1 metre outside thundershowers but exceed 2 metres in affected waters. 

North and Northeast face isolated gusty winds

For the North, the TMD forecasts thundershowers across 20% of the region during November 4–5, with isolated gusty winds, mainly in Mae Hong Son, Chiang Mai, Chiang Rai, Tak and Phetchabun. Minimum temperatures will be 21–24°C and maximums 33–36°C, with easterly winds of 10–20 km/h.

Thundershowers will cover 10% of the Northeast during November 4–5, accompanied by isolated gusty winds, mainly in Chaiyaphum, Nakhon Ratchasima, Buriram, Surin, Sisaket and Ubon Ratchathani, according to the TMD. Minimum temperatures will be 21–24°C and maximums 32–35°C, with northeasterly winds of 10–20 km/h.

Both southern coasts face 60% thundershower coverage

Along the South’s east coast, the TMD forecasts thundershowers across 60% of the area during November 4–5, with isolated heavy rain in Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, Yala and Narathiwat. Minimum temperatures will be 22–25°C and maximums 32–34°C.

The TMD’s November 4–5 marine forecast for the South’s east coast specifies easterly winds from Surat Thani northwards and southeasterly winds from Nakhon Si Thammarat southwards, both at 15–30 km/h. Waves will be about 1 metre high, rising above 2 metres in thundershowers.

On the South’s west coast, thundershowers will cover 60% of the area during November 4–5, with isolated gusty winds, mainly in Phang Nga, Phuket, Krabi, Trang and Satun, according to the TMD. Minimum temperatures will be 23–25°C and maximums 32–35°C, with easterly winds of 15–30 km/h. Waves will be about 1 metre high, exceeding 1 metre offshore and 2 metres in thundershowers.

TMD advises precautions against lightning, gusts and rough seas

The TMD’s November 4–5 outlook includes possible lightning in parts of upper Thailand and isolated heavy rain in the lower Central region, including Bangkok and surrounding areas, the East and the South. People in affected areas should take precautions against gusty winds and heavy rain by avoiding open spaces, large trees and unsecured billboards.

Mariners in the Andaman Sea and Gulf of Thailand should navigate cautiously and avoid waters affected by thundershowers during the forecast period, as the TMD expects waves in those areas to exceed 2 metres.