The aim of this cross-sectional study was to investigate the relationship between teacher learning support, motivational climate and self-regulated learning in upper-secondary school physical education. A sample consisting of 554 upper secondary school students from Norway (M[subscript age] = 17.05, SD = 0.91) answered a survey pertaining to their everyday experiences in physical education. A multiple regression based structural equation model indicated that teacher learning support, ego-involving motivational climate and task-involving motivational climate were all significant positive predictors of self-regulated learning, with teacher learning support emerging as the most prominent predictor. These results add to the cumulative knowledge that exists on the relationship between teacher dependent environmental factors and individual behavior within the physical education context.