TMD Warns of Heavy Rain, Strong Winds, Flash Floods Nationwide

The Thai Meteorological Department released its seven-day regional forecast on October 30, 2026, covering October 30 through November 6.

General Outlook October 30 – November 6, 2026

From October 31 to November 1, Thailand will experience thundershowers, especially in the Central region including Bangkok and its vicinity, the Eastern region, and the Southern region. Heavy rain is expected in parts of the east coast of the South due to a high-pressure system or cold air mass from China covering upper Thailand, while the South China Sea weakens but continues to feed easterly winds across Thailand and the Gulf.

From November 2 to 6, the weather will turn volatile with thundershowers, strong gusts, and heavy rain in some areas as the high-pressure system or cold air mass from China extends to cover the North, the Northeast, and the South China Sea. Additionally, from November 3 to 5, an easterly wave will move across the lower Northeast, the East, the Central region including Bangkok, the Gulf, and the South. In the Gulf of Thailand and the Andaman Sea, areas with thundershowers will see waves higher than two meters throughout the period.

Precautions

From November 2 to 6, the public is advised to stay alert to dangers from thundershowers and strong gusts, avoid open areas, large trees, and unstable billboards, and beware of heavy and accumulated rainfall that may trigger flash floods, forest runoff, and landslides — particularly in foothill areas near waterways and low-lying zones.

Mariners in the Gulf of Thailand and the Andaman Sea should check routes, proceed with caution, and avoid sailing in areas with thundershowers throughout the period.

Regional Forecast October 30 – November 6, 2026

North October 31 – November 1 and November 3–4: Thundershowers covering 10–30% of the area; easterly winds 10–20 km/h. November 2 and November 5–6: Thundershowers 30–40% with strong gusts and heavy rain in places; east-southeasterly winds 10–20 km/h. Low 20–26°C, high 28–35°C.

Northeast October 31 – November 2: Thundershowers 10–30%, mainly in the lower part; east-northeasterly winds 10–20 km/h. November 3–6: Thundershowers 40–60% with strong gusts and heavy rain in places; easterly winds 10–25 km/h. Low 21–25°C, high 31–35°C.

Central October 31 – November 3: Thundershowers 20–40%; easterly winds 10–20 km/h. November 4–6: Thundershowers 40–60% with strong gusts and heavy rain in places; east-southeasterly winds 10–20 km/h. Low 22–27°C, high 32–36°C.

East October 31 – November 2: Thundershowers 30–40%; easterly winds 10–30 km/h. Seas below 1 meter, but over 2 meters in thundershower areas. November 3–6: Thundershowers 40–60% with strong gusts and heavy rain in places; east-southeasterly winds...