Usage patterns
夏になるto become summer
Summer will be here soon.
夏が来るsummer comes/arrives
The hot summer has come again.
〈場所〉で夏を過ごすto spend the summer in/at a place
Every year I spend the summer in the countryside.
夏の〈物〉a summer(-related) ~; something characteristic of summer
Fireworks are a classic feature of summer.
Expressions
夏の月summer moon; the summer moon 夏の盛りheight of summer; hottest part of summer