Changes in coastal upwelling strength have been widely studied since 1990 when Bakunproposed that global warming can induce the intensification of upwelling in coastalareas. Whether present wind trends support this hypothesis remains controversial, asresults of previous studies seem to depend on the study area, the length of the timeseries, the season and even the database used. In this study, temporal and spatialtrends in the coastal upwelling regime worldwide were investigated during upwellingseasons from 1982 to 2010 using a single wind database (Climate Forecast SystemReanalysis) with high spatial resolution (0.3°). Of the major upwellingsystems, increasing trends were only observed in the coastal areas of Benguela,Peru, Canary and northern California. A tendency for an increase inupwelling-favourable winds was also identified along several less studied regions,such as the western Australian and southern Caribbean coasts.