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Synoptic Situation
16 December 2025The rather strong northeast monsoon prevails over the Gulf, the South and the Andaman Sea with isolated heavy rains in the lower South. The rather strong wind forces the waves in the lower Gulf up to be 2-3 meters high and above 3 meters high in thundershowers. In the upper Gulf, the waves are expected about 2 meters high and above 2 meters high in thundershowers. In the Andaman Sea, the waves are expected 1-2 meters high and above 2 meters high in thundershowers and offshore. All ships in the Gulf and the Andaman Sea should proceed with caution and keep off thundershowers, small boats in the lower Gulf keep ashore for one more day.
Announcement Date 16 December 2025 19:00
24-Hour Weather Forecast for Shipping
The Gulf of Thailand
Isolated thundershowers and isolated to very heavy rains in the lower part. Upper Gulf : Northeasterly winds 11-18 knots or 20-35 km./hr. Wave height about 2 meters and above 2 meters in thundershowers. Lower Gulf : Northeasterly winds 11-22 knots or 20-40 km./hr. Wave height 2-3 meters and above 3 meters in thundershowers.
The Andaman Sea and Malacca Strait
Isolated thundershowers and isolated heavy to very heavy rains in the lower part. Northeasterly winds 11-18 knots or 20-35 km./hr. Wave height 1-2 meters and above 2 meters in thundershowers and offshore.
Kotabaru to Singapore Route
Widespread thundershowers and isolated heavy to very heavy rains. Northeasterly winds 11-22 knots or 20-40 km./hr. Wave height 2-3 meters and above 3 meters in thundershowers.
Tip of Indochina
Isolated thundershowers. Northeasterly winds 11-24 knots or 20-45 km./hr. Wave height 2-4 meters and above 4 meters in thundershowers.
Announcement Date 16 December 2025 19:00