The Thai Meteorological Department has issued warnings for heavy rainfall across seven southern provinces alongside widespread thundershowers and gusty winds throughout the country on 3 November 2026. The unsettled conditions stem from a continental high-pressure system moving from China over the upper Northeast, combined with prevailing easterly winds blowing across the Gulf of Thailand and the Andaman Sea. The most severe downpours will affect southern districts. British expatriates residing in or travelling through the affected regions face localised flash flooding, transport disruptions, and hazardous maritime conditions.
Southern Provinces and Marine Disruptions
Heavy rain is forecast for Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, Yala, and Narathiwat. Expatriates living on the eastern coast, including those on the islands of Koh Samui and Koh Phangan in Surat Thani province, should prepare for sudden downpours and reduced visibility. Local authorities have warned of flash floods in low-lying residential areas and near drainage channels. Temperatures across the south will hover between 22°C at night and 34°C during the day.
On the western coast, covering popular expatriate hubs such as Phuket, Phang Nga, Trang, and Satun, scattered thundershowers are accompanied by easterly winds reaching 30 kilometres per hour. Wave heights in open water will average one to two metres. Sea swells will exceed two metres during storms. Small boat crossings and ferry travel between mainland piers and southern resort islands face delays and safety restrictions while these conditions persist.
Bangkok and the Central Plains
Bangkok faces scattered thundershowers and gusty winds throughout the forecast period. Daytime temperatures in the capital are expected to peak at 34°C after overnight lows of 24°C, with southeasterly winds blowing between 10 and 20 kilometres per hour. For UK nationals commuting across the metropolitan area, sudden downpours regularly lead to standing water on secondary roads and pavements, creating significant traffic delays during peak hours.
Similar weather patterns will affect surrounding central provinces. Kanchanaburi, Suphan Buri, Ayutthaya, Nakhon Pathom, and Samut Prakan will experience intermittent storms and localised surface flooding that may disrupt road travel and routine outdoor property maintenance.
Eastern Seaboard and Northern Regions
The Eastern Seaboard, which includes large British communities in Chonburi, Pattaya, and Rayong, will see scattered thundershowers and southeasterly winds of up to 30 kilometres per hour. Coastal apartment buildings and beachfront properties face rough seas, with inshore waves rising above two metres during squalls.
In northern and northeastern Thailand, including Chiang Mai, Mae Hong Son, and Khon Kaen, the weather will remain predominantly warm with isolated thundershowers. Daytime highs in the north will reach 37°C. Wind gusts in these inland provinces could bring down unsecured branches and temporary signage.
Practical Guidance for British Residents
Residents should take standard precautions during severe weather spells. The meteorological office advises the public to stay indoors during intense electrical storms and avoid standing near large trees or unanchored advertising billboards.
Drivers should check vehicle tyre tread depths and avoid driving through submerged roads where water levels can conceal open drains or stall engines. Those living in ground-floor properties or managing private houses should ensure rooftop drainage outlets and perimeter gutters are cleared of debris. Residents in high-rise apartments should secure balcony furniture to prevent wind damage. Anyone planning island transfers by speedboat or regional ferry should consult transport operators before departure to confirm that scheduled services are operating safely.
Source: thethaiger.com
Reviewed by the Thailand Guide Editorial Team • Last reviewed: 3 November 2026
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