Weather Advisory
Subject: Cool to cold in
Thailand
Heavy Rain in the South and
Strong wind-waves in the Gulf
(Effect during 17-23 November
2025)
No.2 (341/2025)
During 17 - 23 November 2025, another
strong high-pressure system from China will extend to upper Thailand and the
South China Sea with thundershower and gust in the first period. This variable
conditions will start over the Northeast in Ubon Ratchathani, Si Sa Ket, Surin,
Buri Ram and Nakhon Ratchasima, then will affect to the rest region. After that
decrease in temperature and strong winds. A decrease in temperature by 4–7 °C are forecast in the Northeast while a
decrease in temperature by 2–4 °C are forecast in the North, the Central
including Bangkok and its vicinity and the East regions. People in upper the
country should beware severe condition and keep healthy due to change condition
the weather with cooler and beware of fire due to strong winds and dry air. Farmers
should prevent for crop damage.
The
strengthening northeast monsoon will prevail over the Gulf and the South while
the easterly wave will move over the South with more rains and isolated heavy
to very heavy rains in the South. The rather strong wind forces the waves in
the Gulf up to 2-3 meters high and above 3 meters high in thundershowers while
the waves in the upper Andaman Sea are likely about 2 meters high, 2–3 meters
offshore and above 3 meters high in thundershowers. People along the South
(east coast) should beware of severe condition and accumulated rain that may
cause flash flood and overflows, especially along the waterways near foothills
and lowlands including should beware of inshore surges. All ships should
proceed with caution and keep off thundershowers. Small boats in the Gulf
should keep ashore during 19-23 Nov 2025.
This advisory is in effect on 15 November 2025, at 5.00
p.m.
This next issue will be on 16 November 2025, at 5.00 a.m.
(Signed) Sugunyanee Yavinchan
(Miss Sugunyanee
Yavinchan)
Director-General
Thai Meteorological
Department