This dataset contains temperature data from the TOGA/WOCE line PX3 in the Coral Sea. Data have been collected between March 1985 and October 1990. The transect was repeated approximately monthly. The data were obtained from XBTs (expendable bathythermographs) deployed via the vessel Nimos, and are now managed by the Joint Australian Facility for Ocean Observing Systems (JAFOOS), a collaborative venture between CSIRO Marine Research and the Bureau of Meteorology Research Centre (BMRC).