日当(ひあ)たりexposure to the sun, sunny place, per day

日当(ひあ)たりの良(よ)い部屋(へや)は暖(あたた)かいです。

The room with good sunlight is warm. {exposure to the sun, sunny place, per day}

父(ちち)：「日当(ひあ)たりの良(よ)い庭(にわ)に洗濯(せんたく)物(もの)を干(ほ)そう！」

Father: 'Let's hang the laundry in the sunny garden!' {exposure to the sun, sunny place, per day}

この部屋(へや)は日当(ひあ)たりがいいので、暖房(だんぼう)が必要(ひつよう)ありません。

This room gets a lot of sunlight, so it doesn't need heating. {exposure to the sun, sunny place, per day}

この南側(みなみがわ)の部屋(へや)は日当(ひあ)たりもよければ川(かわ)のせせらぎも聞(き)こえます。

This south-facing room not only gets plenty of sunlight, but you can also hear the babbling of the river. {exposure to the sun, sunny place, per day}

家(いえ)の目(め)の前(まえ)にビルが建(た)って、部屋(へや)の日当(ひあ)たりが悪(わる)くなってしまった。

A building was built right in front of my house, and it has made the sunlight in my room worse. {exposure to the sun, sunny place, per day}