During 10–15 July 2026, the strong southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf of Thailand. The strengthening wind force the waves in the upper Andaman Sea up to 2–4 meters. In the upper Gulf and the lower Andaman Sea, the wave are likely 2-3 meters and above 3 meters high in thundershowers. All ships in the Andaman Sea and the Gulf should proceed with caution and keep off thundershowers, small boats should keep ashore.