Warmcore is an aesthetic that is related to both cottagecore, naturecore and other nature/farm related aesthetics. The aesthetic related to things at make a person feel warm and fuzzy inside, with a hint of nostalgia. Warmcore aesthetics usually warm, bright lighting over a usually nature centered aesthetic.
Consists of flowy dresses, floral prints, blouses, comfy and, obviously warm clothes. Summery outfits fit into this aesthetic really well. A lot of the fashion inspo is similar to cottagecore, farmcore and grandmacore.