夜よ濯すすぎ

noun

nighttime laundry (in summer)

Refers to the practice of washing clothes at night during the hottest part of summer, often to avoid daytime heat or to let clothes dry overnight.

• 真ま夏なつは夜よ濯すすぎをして、朝あさまでに乾かわかすことが多おおい。

  In midsummer, I often do the laundry at night and let it dry by morning.