Synoptic Situation
12 December 2025
The moderate northeast monsoon prevails over the Gulf, the South and the Andaman Sea and the low pressure cell over the Gulf and the South with move rain and heavy to very heavy rain. The moderate wind and waves in the lower Gulf are likely 1-2 meters high and above 2 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers.
Announcement Date 12 December 2025 07:00
24-Hour Weather Forecast for Shipping
The Gulf of Thailand
Scattered thundershowers and isolated heavy to very heavy rains.
Northeasterly winds 8-18 knots or 15-35 km./hr.
Wave height 1-2 meters and above 2 meters in thundershowers.
The Andaman Sea and Malacca Strait
Fairly widespread thundershowers and isolated heavy to very heavy rains.
Northeasterly winds 8-18 knots or 15-35 km./hr.
Wave height about 1 meter, about 1 meter offshore and above 2 meters in thundershowers.
Kotabaru to Singapore Route
Scattered thundershowers and heavy rain.
Northeasterly winds 11-18 knots or 20-35 km./hr.
Wave height about 2 meters and above 2 meters in thundershowers.
Tip of Indochina
Isolated thundershowers.
Northeasterly winds 11-22 knots or 20-40 km./hr.
Wave height 2-3 meters and above 3 meters in thundershowers.
Announcement Date 12 December 2025 07:00