7 day Weather Forecast Weather Forecast During 13 ? 19 December 2023 During 13 ? 16 Dec, another high-pressure system from China will extend to the North and the Northeast of Thailand and the South China Sea while the westerly trough will move pass the upper North causing morning cool in the North and the Northeast regions and isolated thundershowers in the North. The moderate northeast monsoon prevails over the Gulf and the South with isolated heavy rains in the lower South. The winds and waves in the upper Gulf and the Andaman Sea are likely about 1 meter high and above 1 meter high in thundershowers while the waves in the lower Gulf is likely 1 - 2 meters high and above 2 meters high in thundershowers. During 17 - 19 Dec, another rather strong high-pressure system from China will extend upper Thailand and the South China Sea. The first period causes isolated rains and after that a decrease in temperature and strong wind. 2 ? 4 ?C drop in temperature is likely in the North and the Northeast while 1 ? 3 ?C drop in temperature is likely in the Central, Bangkok and the vicinity and the east. The strengthening northeast monsoon prevails over the Gulf and the South with isolated heavy to very heavy rains in the lower South. The strengthening wind and waves in the upper Gulf is likely 1 - 2 meters high, about 2 meters high in the lower Gulf and above 2 meters high in thundershowers. In the Andaman Sea, the wave is likely about 1 meter high, above 1 meter high in thundershowers and 1 - 2 meters high offshore.
Caution
People in the upper country should keep healthy due to the changeable weather throughout the period. All ships in the lower gulf should proceed with caution and keep off thundershowers throughout the period.
Announcement Date 13 December 2023 05:00 AM
Regional Weather Forecast
During 13 ? 19 December 2023
Northern
During 13 ? 17 Dec, morning cool with 1 ? 3 ?C drop in temperature in the upper part. Isolated thundershowers mostly in the upper part and the western part during 13 ? 14 Dec. Minimum temperature 18 ? 23 ?C. Maximum temperature 30 ? 35 ?C. Cold on the mountain top: Minimum temperature 7 ? 14 ?C. southeasterly winds 10 ? 15 km/hr. During 18 - 19 Dec, morning cool to cold with strong wind. 2 - 3?C drop in temperature. Minimum temperature 15 ? 21 ?C. Maximum temperature 29 ? 34 ?C. Cold on the mountain top: Minimum temperature 5 ? 12 ?C. Easterly winds 10 ? 25 km/hr.
Northeastern
During 13 ? 16 Dec, morning cool. Isolated light rains mostly in the lower part. Minimum temperature 18 ? 23 ?C. Maximum temperature 31 ? 34 ?C. Cool to cold on the mountain top: Minimum temperature 10 ? 16 ?C. Northeasterly winds 10 ? 25 km/hr. During 17 - 19 Dec, isolated light rains in the first period and after that morning cool to cold. 2 - 4?C drop in temperature with strong wind. Minimum temperature 14 ? 21 ?C. Maximum temperature 29 ? 33 ?C. Cold on the mountain top: Minimum temperature 7 ? 12 ?C. Northeasterly winds 15 ? 30 km/hr.
Central
During 13 ? 16 Dec, morning cool with light fog and isolated light rains. Minimum temperature 21 ? 25 ?C. Maximum temperature 32 ? 36 ?C. Northeasterly winds 10 ? 20 km/hr. During 17 - 19 Dec, isolated light rains in the first period and after that morning cool to cold. 1 - 3?C drop in temperature with strong wind. Minimum temperature 18 ? 22 ?C. Maximum temperature 30 ? 34 ?C. Northeasterly winds 10 ? 25 km/hr.
Eastern
During 13 ? 16 Dec, morning cool with light fog and isolated light rains. Northeasterly winds 15 ? 30 km/hr. Wave below 1 meter and 1 - 2 meters offshore. Minimum temperature 21 ? 25 ?C. Maximum temperature 32 ? 36 ?C. During 17 - 19 Dec, isolated light rains in the first period and after that morning cool to cold. 1 - 3?C drop in temperature with strong wind. Northeasterly winds 15 ? 35 km/hr. Wave height 1 - 2 meters and about 2 meters offshore. Minimum temperature 18 ? 22 ?C. Maximum temperature 29 ? 34 ?C.
Southern (East Coast)
scattered thundershowers and isolated heavy rains in the lower part throughout the period. During 13 - 16 Dec, Surat Thani upward: northeasterly winds 15 - 30 km/hr. Wave height about 1 meter and above 1 meter in thundershowers. Nakhon Si Thammarat downward: easterly winds 15 - 35 km/hr. Wave height 1 - 2 meters and above 2 meters in thundershowers. During 17 - 19 Dec, Surat Thani upward: northeasterly winds 15 - 35 km/hr. Wave height 1 - 2 meters and above 2 meters in thundershowers. Nakhon Si Thammarat downward: easterly winds 20 - 35 km/hr. Wave height about 2 meters and above 2 meters in thundershowers. Minimum temperature 23 ? 26 ?C. Maximum temperature 29 ? 34 ?C.
Southern (West Coast)
Scattered thundershowers throughout the period and isolated heavy rains during 18 ? 19 Dec. Easterly winds 15 - 30 km/hr. Wave height about 1 meter, above 1 meter high in thundershowers and 1 ? 2 meters high offshore. Minimum temperature 23 ? 26 ?C. Maximum temperature 29 ? 34 ?C.
Bangkok Metropolitan
During 13 ? 16 Dec, morning light fog and isolated light rains. Minimum temperature 23 ? 25 ?C. Maximum temperature 32 ? 36 ?C. Northeasterly winds 10 ? 20 km/hr. During 17 - 19 Dec, isolated light rains in the first period and after that morning cool to cold. 1 - 3?C drop in temperature with strong wind. Minimum temperature 20 ? 22 ?C. Maximum temperature 30 ? 34 ?C. Northeasterly winds 10 ? 25 km/hr.
Announcement Date 13 December 2023 05:00 AM
Source: Thai Meteorological Department