夜には

by nighttime

→ 夜
phrase Uncommon #16,415
by nighttime Uses に to mark a time and は to add emphasis or contrast. Depending on context, it can also mean “at night.”
JA: 夜には帰るよ。
EN: I’ll be back by nighttime.

夜には強風収まった

By evening, the strong winds had died down too.

夜には突破らしい

Apparently, we'll break through by night.

— 鶴は翔んでゆく (1957)

寒い夜には温かい飲み物体を温める良いです

On cold nights, it's a good idea to warm yourself up with a hot drink.

夜には旅をする

Don't travel at night.

— ロード・オブ・ザ・リング (2001)

夜には着くでしょう

I’ll probably arrive by evening.

— ロード・オブ・ザ・リング/二つの塔 (2002)

トム夜にはあまり家から出かけない

Tom doesn't go out much at night.

夜には戻れる

I can be back by tonight.

— 動くな、死ね、甦れ! (1990)

夜には雨になるかもしれない

It might rain tonight.

は普通コーヒーを夜にはお茶を飲みます

I usually drink coffee in the morning and tea at night.

うーん夜には帰るから

Hmm... I'll be home tonight, okay!

— 君の名は。 (2016)

明日は決戦という夜にはの中でもこういうことがたくさん起きる

On the eve of the decisive battle tomorrow, many things like this happen even inside the castle.

— 七人の侍 (1954)

夜には着く

I'll arrive by evening.

— ハウルの動く城 (2004)