noun
breeze off a river; river breeze
Refers to a wind blowing from or along a river, often carrying a cool, fresh feeling.
夕方になると、川風が涼しくて気持ちいい。
In the evening, the breeze off the river is cool and pleasant.
川風に吹かれながら散歩した。
I took a walk while feeling the river breeze.
Compound of 川 (kawa, 'river') and 風 (kaze, 'wind'). The reading かわかぜ is a straightforward combination.