The 32-year-old woman and her three-year-old daughter were killed when winds felled a tree which toppled onto their home.
The waves, which have been battering the villages for three days, damaged one home and a community rest shelter, with storm surges forecast to continue for at least two more days.
In Surat Thani province, on the opoposite side of the Thai isthmus, six districts have been flooded with runoff from the Kang Krung National Park in several days of continuous downpours, but conditions are now reported to be easing.
Villagers in Baan Pak Lang in Vibhavadi District said that floodwaters had fallen by 2.5 metres and some villagers were beginning to clean up their homes. However, lower-lying areas of the village are still underwater.
The Surat Thani Provincial Administration Organisation sent heavy construction equipment to repair a damaged bridge across Khlong Jae on the Khlong Wai-Vibhavadi Road, and the route has now reopened for normal traffic.