אני מקווה שהשכונה תהיה שקטה גם בלילה, כי ביום היא נראית שונה מאוד.

ש־ is a very common Hebrew connector meaning that.

So:

• שכונה = neighborhood
• השכונה = the neighborhood
• שהשכונה = that the neighborhood

In modern Hebrew, ש־ is normally written as a prefix attached to the following word.

They do different jobs:

• ש־ introduces the content of what someone hopes, thinks, knows, says, etc.
  • אני מקווה ש... = I hope that...
• כי here means because and introduces a reason.
  • ..., כי ... = ..., because ...

So the sentence has this structure:

• אני מקווה ש... = I hope that...
• כי... = because...

In everyday modern Hebrew, מקווה ש... is much more natural than מקווה כי..., which sounds more formal or literary.

Because after אני מקווה (I hope), Hebrew usually puts the hoped-for action or situation in the future.

So:

• אני מקווה = I hope
• תהיה = will be

That is the normal pattern:

• אני מקווה שהוא יבוא = I hope he will come
• אני מקווה שיהיה טוב = I hope it will be good

Here, the speaker is hoping that the neighborhood will be quiet.

Because it agrees with השכונה, and שכונה is a feminine singular noun.

תהיה is the 3rd person feminine singular future form of להיות (to be).

Compare:

• הוא יהיה = he will be
• היא תהיה = she will be

Since השכונה is grammatically feminine, Hebrew uses the feminine verb form.

Hebrew adjectives agree with the noun they describe in gender and number.

Since שכונה is feminine singular, the adjective must also be feminine singular:

• שקט = quiet, masculine singular
• שקטה = quiet, feminine singular

So:

• רחוב שקט = a quiet street
• שכונה שקטה = a quiet neighborhood

גם means also, too, or sometimes even, depending on context.

In this sentence, it means that the speaker hopes the neighborhood will be quiet at night as well, not only at other times.

So גם בלילה means roughly:

• also at night
• at night too

Its position before בלילה shows that it is modifying the time phrase.

They are time expressions with the prefix ב־, which usually means in, at, or during.

• בלילה = at night / during the night
• ביום = in the daytime / during the day

A useful detail: when ב־ joins a word that has the definite article ה־, the article is absorbed in pronunciation and in pointed spelling.

So these forms are historically like:

• ב + היום → ביום
• ב + הלילה → בלילה

In normal unpointed Hebrew, you just see ביום and בלילה.

Because Hebrew usually still wants an explicit subject in the new clause.

The second part is a separate clause:

• כי ביום היא נראית שונה מאוד

After the opening time phrase ביום, Hebrew naturally uses היא to mark the subject clearly: it / she = the neighborhood.

English sometimes repeats the pronoun in the same way:

• Because during the day it looks very different

So היא is not redundant; it makes the clause complete and natural.

Yes. נראית comes from the verb להיראות, which means to appear, to look, or to seem.

So here היא נראית שונה מאוד means:

• it looks very different
• it appears very different

This is different from רואה, which means sees.

Some useful forms:

• נראה = looks / appears, masculine singular
• נראית = looks / appears, feminine singular
• נראים = look / appear, masculine plural
• נראות = look / appear, feminine plural

Because השכונה is feminine singular, the sentence uses נראית.

Because שונה is one of those adjectives/participles whose singular masculine and singular feminine look the same.

So both are correct:

• ילד שונה = a different boy
• ילדה שונה = a different girl
• שכונה שונה = a different neighborhood

The difference becomes clearer in the plural:

• שונים = masculine plural
• שונות = feminine plural

So שונה is perfectly correct with the feminine noun שכונה.

That is a normal Hebrew pattern.

מאוד means very, but unlike English very, it usually comes after the adjective or adverb it modifies.

So Hebrew says:

• שונה מאוד = very different
• שקטה מאוד = very quiet
• יפה מאוד = very beautiful

This post-position is one of the most common word-order differences between Hebrew and English.

Yes, very natural.

The sentence is built like this:

• אני מקווה = main clause
• שהשכונה תהיה שקטה גם בלילה = content clause introduced by ש־
• כי ביום היא נראית שונה מאוד = reason clause introduced by כי

Inside the last clause, Hebrew puts the time phrase first:

• ביום = during the day
• היא = it
• נראית = looks
• שונה מאוד = very different

That order is completely natural in Hebrew, especially when setting the time context first.