The storm first arrived on August 24 as a Category 3 storm that passed over the far southern tip of Formosa.
The slowly moving storm triggered widespread flooding from up to 20 inches of rainfall in some spots.
After passing over the Taiwan Strait, Tembin looped back, hitting the island again on August 28 as a much weaker storm.
It was predicted to bring further rainfall to already water-logged South Korea late in the week.
Typhoon Tembin Track
Radar Loop Data: Central Weather Bureau