Plankton Bloom Prompts Swimming Warning at Laem Panwa Beach
Authorities have issued a warning against swimming at Laem Panwa Beach in Phuket following reports of discolored seawater caused by a plankton bloom.
Seawater Discoloration Reported
According to a report by Thai Post on November 15, 2026, officials from the Marine and Coastal Resources Research Center (Upper Gulf of Thailand) have conducted an inspection at Laem Panwa Beach in Phuket. The investigation was launched following reports of the seawater changing color, a phenomenon commonly associated with a plankton bloom.
Safety Advisory
As a precautionary measure, authorities have advised the public and tourists to refrain from swimming or engaging in water-based activities in the affected area. Plankton blooms can sometimes lead to skin irritation or other health issues for those who come into contact with the water.
Current Status
While the inspection confirmed the presence of a plankton bloom, the duration of this event and the specific extent of the affected coastal area remain under observation. Residents and visitors are encouraged to monitor local announcements for updates regarding when it will be safe to return to the water. At this time, no further details regarding the environmental impact or the expected timeline for the water to return to its natural state have been provided. Travelers planning to visit the area should prioritize local safety signage and official guidance from Phuket authorities.
