Weather
Advisory
Subject: Heavy
to Very Heavy Rain in Thailand
No.6 (222/2026)
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During 24 – 27 September 2026, the active low-pressure cell over Cambodia is expected to move to cover
the lower Northeast, the East, the Central including Bangkok and vicinity along
the monsoon trough lying across upper Thailand. Meanwhile the southwest monsoon
prevailing across the Andaman Sea, Thailand and the Gulf will strengthen. Isolated heavy to very heavy rains are likely
over the country especially in the North, the lower Northeast, the Central
including Bangkok and vicinity, the East and the South regions.
People in the
country should beware of heavy to very heavy rains and accumulation that may
cause flash floods, overflows and landslides especially along the waterways
near foothills and lowlands.
The strengthened winds forces the wave in the upper Gulf and the upper
Andaman Sea up to 2 - 3 meters and above 3 meters high in thundershowers. The
waves in the lower Gulf and the lower Andaman Sea are likely about 2 meters
high with above 2 meters high in thundershowers. All ships should proceed with
caution and keep off thundershowers. Small boat in the upper Gulf and the upper
Andaman Sea should keep ashore by lasting 27 September 2026.
The advisory is in effect on 24 September 2026, at 5.00 a.m.
This next issue will be on 24 September 2026, at 5.00 p.m.
(Signed)
Sugunyanee Yavinchan
(Miss Sugunyanee
Yavinchan)
Director-General
Thai Meteorological Department