The sun doesn't rise as high in the sky in the latter half of August in Japan, so it feels like summer is drawing to a close.
この場合、次のような言い方ができますよ。
ーThe sun doesn't rise as high in the sky in the latter half of August in Japan, so it feels like summer is drawing to a close.
「日本では8月後半になると日が傾くので、夏の終わりを感じる」
太陽が傾くことは、the sun doesn't rise as high in the sky のように言うと良いでしょう。
the latter half of August「8月後半」
to draw to a close「終わりに近づく」
ご参考まで!