Flooding caused by torrential rain that disrupted airline flight schedules on Sunday had drained off in most areas of Phuket by Monday.
Officials said on Monday there was still floodwater in villages in Thalang district, but evacuees were returning to their homes.
About 120 people took refuge in two local schools on Sunday.
Property owners and local officials were on Monday cleaning up the mud left behind by the flooding.
Phuket's governor said assistance was being delivered to 740 households in communities in Kathu and Thalang districts. Bantarua School in Thalang district closed on Monday as the clean up continued. There were no reports of any damage in Muang district.
The governor said 310 millimetres of rain fell on the area on Sunday. The downpour disrupted many flights at Phuket airport.