Source: L'Ecuyer, T. et al, 2015 (or here). The observed state of the energy budget in the early twenty-first century. J. Climate, 28, 8319-8346. Fig. 7 & 8.
Antarctica emits more radiative energy than it absorbs, year-round.
The Arctic Ocean also does so nearly year-round. Solar radiation absorbed in the Arctic only barely exceeds radiative losses, briefly, in early summer.
Click on the graphs to enlarge them:
Click on this one to zoom-in on the Arctic graph:
Click on this one to zoom-in on the Anatarctica graph:
[ h/t “The VooDude” (an insightful scientist who wishes to remain anonymous), for drawing my attention to this paper.]