beating the summer heat; cooling off in summer
Refers to actions or events that help one escape the oppressive summer heat, such as eating cooling foods, visiting cooler places, or holding a summer party. Often used in the context of seasonal gatherings.
To beat the summer heat, I ate cold somen noodles.
We went to a beer garden for the company's summer heat-beating party.
暑さ対策 refers to practical measures against heat, such as using fans or wearing cool clothing, whereas 暑気払い has a more festive or seasonal nuance.
Compound of 暑気 (summer heat) and 払い (driving away, clearing). The term likely originated from the idea of dispelling the oppressive heat through food, drink, or gatherings.