noun
night air; stillness of night; cool evening
Refers to the atmosphere or air of the night, often with a poetic or literary feel. Can imply the quiet, cool, or still quality of nighttime.
夜気がひんやりと肌に心地よい。
The cool night air feels pleasant on my skin.
彼は夜気の中を一人で歩いた。
He walked alone in the stillness of the night.