Todays Weather: Meteorological Department Lists Provinces Still at Risk of Rainfall

Today's weather: The Meteorological Department has released a list of provinces that still need to be monitored for the possibilityof "rainfall."Bangkok and its metropolitan area have a 20 percent chance of thunderstorms.

On 18 Feb 2026 GMT+7, the websiteof the Meteorological Departmentissued a 24-hour weather forecast stating that upper Thailand will experience scattered thunderstorms due to a high-pressure system or a moderate cold air mass from China covering the Northeast and the South China Sea.

This causes east and southeast winds to bring moisture from the Gulf of Thailand over upper Thailand. Residents in these areas are advised to take care of their health due to the changing weather and to be cautious of possible thunderstorms during this period.

For the South, there will be scattered thunderstorms caused by east and southeast winds covering the Gulf of Thailand, the southern region, and the Andaman Sea. The waves in the lower Gulf of Thailand and offshore Andaman Sea are moderate, with wave heights of 1–2 meters. In areas with thunderstorms, waves may exceed 2 meters. Fishermen in the Gulf of Thailand and Andaman Sea are advised to navigate cautiously and avoid sailing in areas with thunderstorms.

Currently, particulate matter or haze accumulation in upper Thailand ranges from moderate to fairly high levels but is expected to decrease in some areas due to improved air ventilation and the chance of rain in some locations.

Weather forecast for Thailand

From 06:00 today, 18 Feb 2026 GMT+7, until 06:00 tomorrow, 19 Feb 2026 GMT+7

Northern region

• Cool weather with morning fog and a 20 percent chance of thunderstorms.
• Mostly in Mae Hong Son, Chiang Mai, Lamphun, Lampang, Sukhothai, and Tak provinces.

• Minimum temperatures range from 17 to 24 degrees Celsius; maximum temperatures from 33 to 37 degrees Celsius.
• On mountain peaks, the weather is cold to very cold, with minimum temperatures of 7 to 15 degrees Celsius.
• Southeast winds blowing at 10–15 km/h.

Northeastern region

• Cool in the morning with minimum temperatures of 18 to 23 degrees Celsius.
• Maximum temperatures range from 32 to 35 degrees Celsius; mountain peaks are cool to cold with minimum temperatures of 13 to 18 degrees Celsius.
• East winds blowing at 10–25 km/h.

Central region

• There is a 20 percent chance of thunderstorms.
• Mostly in Suphan Buri, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon, and Samut Songkhram provinces.
• Minimum temperatures between 23 and 26 degrees Celsius.
• Maximum temperatures between 34 and 36 degrees Celsius.
• Southeast winds blowing at 10–20 km/h.

Eastern region

• There is a 20 percent chance of thunderstorms.
• Mostly in Chonburi, Rayong, Chanthaburi, and Trat provinces.
• Minimum temperatures between 24 and 26 degrees Celsius.
• Maximum temperatures between 32 and 36 degrees Celsius.
• Southeast winds blowing at 10–30 km/h. The sea waves are below 1 meter near the coast, about 1 meter offshore and in areas with thunderstorms.

Southern region (east coast)

• There is a 30 percent chance of thunderstorms.
• Mostly in Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Yala, and Narathiwat provinces.
• Minimum temperatures between 22 and 25 degrees Celsius.
• Maximum temperatures between 30 and 34 degrees Celsius.
• From Chumphon northwards: Southeast winds blowing at 15–30 km/h; sea waves about 1 meter high, higher than 1 meter in thunderstorm areas.
• From Surat Thani southwards: East winds blowing at 15–35 km/h; sea waves 1–2 meters high, exceeding 2 meters in thunderstorm areas.

Southern region (west coast)

• There is a 30 percent chance of thunderstorms.
• In Ranong, Phang Nga, Phuket, and Satun provinces.
• Minimum temperatures between 23 and 26 degrees Celsius.
• Maximum temperatures between 32 and 34 degrees Celsius.
• East winds blowing at 15–35 km/h.
• Sea waves about 1 meter high near the coast, 1–2 meters offshore, and exceeding 2 meters in areas with thunderstorms.

Bangkok and surrounding areas

• There is a 20 percent chance of thunderstorms.
• Minimum temperatures between 24 and 26 degrees Celsius.
• Maximum temperatures between 33 and 35 degrees Celsius.
• Southeast winds blowing at 10–20 km/h.