© Sakrit Kaewpon The huge water spout could be seen overland from Koh Kaew, north of Phuket Town.
Site manager Sakrit Kaewpon, who was installing water pipes at the site, told The Phuket News that the towering "water twister" appeared at about 10am several miles off Sapam Beach.
"The waterspout remained in sight from the coast for about 10 minutes, before finally disappearing," he said.
Mr Sakrit managed to capture several photos of the gigantic waterspout.
"It was raining before the waterspout appeared. I didn't know about it until my co-workers shouted out, 'Look at that!" Mr Sakrit said
"We were so excited to see a real one so close. Most of us have only ever seen photos of them online."
Comment: Other incidents in recent months of these 'rare' UK tornadoes include those in, Northampton, Somerset and Newport.