Despite interacting with land, little change in strength occurred until 0000 UTC on November 26, at that time, the system began to weaken. After traversing Luzon and Mindoro, the JTWC reduced the wind speed of the typhoon to . Although no eye was visible on satellite imagery, radar imagery indicated that an eye was present, but cloud-filed; henceforth, the JTWC increased the intensity of Nina to , equivalent to a weak Category 3 hurricane. According to the JMA, however, Nina never re-intensified. By 0000 UTC on November 27, the low and mid level circulations began to decouple, deeply thwarting many JTWC forecasters. During this time, the cyclone posed a serious threat to Southern China and Hong Kong; but instead, Nina veered northward while gradually weakening; by midday on November 27, the JMA had reduced the intensity of Nina to . Early on November 28, an eye once again became visible on satellite imagery. However, no re-intensification occurred. By the afternoon, increased wind shear took toll on the cyclone, causing Nina to become less organized due to deep convection being sheared off to the east-northeast. Thus, the JTWC expected Nina to move into the Luzon Straits and rapidly transitioned into an extratropical cyclone. After meandering within the South China Sea, Nina turned south, before dissipating on November 29; though, JMA continued to monitor its remnants until 0000 UTC on November 30.