Lifeguards rescued the the pair, described as local Thai children attending a local school, at about 6:30pm while the lifeguards were warning tourists to get out of the water as the daily surf patrols had finished at 6pm.
The immediate reports did not indicate where the parents were or which guardians the children were with at the time the children were rescued.
The children were taken to Patong Hospital for medical assessment and their condition monitored.
“Both of the children are okay now,” said Vitanya Chuayuan, Deputy Chief of the Phuket Lifegruad Service.
“It’s so lucky that some of the lifeguards stayed behind to warn tourists to stop swimming in the water, otherwise the they would not have been there to help the children,” she said.