در هوای ابری، نقشه این شهر خیلی کمک میکند.

در usually means in, but in phrases like در هوای ابری it can also be understood as in / during / under.

So در هوای ابری means in cloudy weather.

This is because of the ezafe link, a very common Persian connector used to join a noun to an adjective or another noun.

• هوا = air / weather
• ابری = cloudy

So هوای ابری is pronounced roughly havâ-ye abri and means cloudy weather.

Because هوا ends in a vowel sound, the ezafe is written with ی, giving هوای.

ابری is an adjective meaning cloudy.

It comes from:

• ابر = cloud
• -ی = an ending that often makes adjectives

So ابری literally means something like cloud-like or cloudy.

Persian usually puts the main noun first and the possessor or qualifier after it.

So:

• نقشه این شهر = the map of this city
• literally: map of this city

This is the normal Persian pattern:

• کتاب من = my book
• خانه دوست = the friend’s house
• نقشه این شهر = the map of this city

So the order is different from English, but completely normal in Persian.

Yes. There is an understood ezafe there.

The phrase is pronounced naqše-ye in shahr, even if everyday writing often leaves the ezafe unwritten.

In more careful spelling, you may see something like:

• نقشهٔ این شهر

But many texts simply write:

• نقشه این شهر

and expect the reader to know the ezafe is there.

Persian does not have a true definite article like English the.

So Persian often leaves definiteness to context. In this sentence, نقشه این شهر naturally means the map of this city, even though there is no separate word for the.

Words like این can also help make something definite:

• این شهر = this city

In Persian, adverbs often come before the verb or before the whole verb phrase.

Here, خیلی means a lot and modifies کمک می‌کند:

• خیلی کمک می‌کند = helps a lot / is very helpful

So the position is normal Persian word order.

کمک می‌کند is a present-tense form of the compound verb کمک کردن = to help.

Breakdown:

• کمک = help
• می‌کند = does / is doing

Together, they function as one verb: helps.

More specifically:

• می- marks the imperfective/present meaning
• کند is from کردن = to do
• the whole form is third person singular: he/she/it helps

Since the subject is نقشه = map, which is singular, the verb is singular too.

Not always. In Persian, کمک کردن can appear with an explicit object, but it can also be used more generally, especially when the context makes the meaning obvious.

So here, نقشه این شهر خیلی کمک می‌کند means something like:

• The map of this city helps a lot
• The map of this city is very helpful

It does not have to name exactly what is being helped.

Because Persian normally puts the main verb near the end.

That is one of the biggest word-order differences from English.

So this pattern is very typical:

• در هوای ابری = in cloudy weather
• نقشه این شهر = the map of this city
• خیلی کمک می‌کند = helps a lot

Verb-last structure is one of the most common features of Persian sentences.

Yes, a little. Persian is somewhat flexible, especially with phrases like در هوای ابری.

For example, these are both natural:

• در هوای ابری، نقشه این شهر خیلی کمک می‌کند.
• نقشه این شهر در هوای ابری خیلی کمک می‌کند.

The meaning stays very close. The first version puts in cloudy weather first as the setting or topic.

The comma separates the opening setting phrase from the rest of the sentence:

• در هوای ابری، = In cloudy weather,

It is similar to English punctuation in a sentence like In winter, this road gets dangerous.

The comma is helpful and natural here, though in some Persian writing punctuation can be looser.