Wind　and　temperature　are　two　important　loadings　that　must　be　considered　during　design　and　construction　of　supertall　buildings.　More　attention　has　been　paid　to　the　former,　whereas　little　to　the　latter.　In　practice,　the　measured　structural　responses　are　the　combination　of　the　two　loadings　and　separation　of　the　two　effects　is　difficult.　In　this　paper,　the　thermal　and　typhoon　actions　of　the　600　m　tall　Canton　Tower　are　studied　using　the　comprehensive　long-term　structural　health　monitoring　system　installed　on　the　structure.　The　structural　responses　under　a　strong　typhoon　are　monitored.　The　temperature-induced　responses　during　the　typhoon　period　are　eliminated　such　that　the　responses　due　to　typhoon　solely　are　obtained.　The　comparison　shows　that　the　temperature　action　is　similar　to　or　even　larger　than　the　wind　action,　and　thus　should　be　paid　more　attention　for　similar　structures.　Finally,　the　typhhon-induced　responses　are　verified　with　the　wind　tunnel　test　using　an　aeroelastic　model　of　the　entire　tower.