Images shared on social media show locations including a golf course, filling station, school and a condominium close to Phuket Airport submerged under water.
More than 40 cars and 20 motorcycles were damaged by the floods.
Worawit Sisakhukram, a village headman in Phuket, said he was inspecting the area with district officials to assess the damage and find ways to help victims.
Worawit reported that the floodwaters are receding slowly. He also asked the local Department of Disaster Prevention and Mitigation office to help drain the inundated condominium.
Phuket Governor Narong Woonciew also inspected the flooded areas as part of aid efforts for victims.
Phuket Airport asked passengers to arrive three to four hours ahead of their scheduled departure time. Passengers can call 076 351111 for updates on airport and flight information.