Vedän hupun ylös, koska tuuli on kylmä.

Vedän is the 1st person singular present tense of vetää, which means things like to pull, to draw, or to tug.

So:

• vedän = I pull

In this sentence, it means I pull the hood up.

The ending -n is what tells you the subject is I, so Finnish does not need a separate minä here.

Finnish often leaves out subject pronouns when they are clear from the verb ending.

Here, vedän already means I pull, so minä is unnecessary.

• Vedän hupun ylös = I pull the hood up
• Minä vedän hupun ylös = also possible, but now I is more emphasized

So the version without minä is the normal neutral choice.

Because hupun is the object form used here.

The basic dictionary form is:

• huppu = hood

In this sentence, the hood is the thing being pulled, and the action is seen as a complete, result-focused action: you pull the hood up. For that reason, Finnish uses the total object form.

In the singular, that often looks like the genitive:

• huppu → hupun

So:

• Vedän hupun ylös = I pull the hood up

A learner-friendly way to think about it is:

• huppu = the hood
• hupun = the hood as a completed object of the action

Finnish often leaves possession unspoken when it is obvious from context, especially with clothes and body-related things.

So Vedän hupun ylös is naturally understood as:

• I pull my hood up

even though there is no separate word for my.

If you wanted to make it explicit, you could say:

• Vedän huppuni ylös = I pull my hood up

But in everyday Finnish, the shorter version is very natural when the hood clearly belongs to the speaker.

Ylös means up.

It works like the up in English pull up. It shows the direction of the movement.

So:

• vetää = to pull
• vetää ylös = to pull up

In this sentence:

• Vedän hupun ylös = I pull the hood up

Without ylös, the sentence would lose that upward-direction meaning.

Yes, Finnish word order is flexible, but Vedän hupun ylös is a very natural order.

This structure is common:

• verb + object + direction word

So:

• Vedän hupun ylös

sounds smooth and normal.

You may also see other word orders in Finnish, but they usually change emphasis or sound less neutral in this context.

Also, hupun ylös works together almost like the hood up in English.

Because kylmä is a predicate adjective agreeing with tuuli.

Here:

• tuuli = wind
• on kylmä = is cold

So:

• Tuuli on kylmä = The wind is cold

Finnish uses the basic form kylmä here because it describes the noun tuuli.

By contrast, kylmää is often used in expressions like:

• On kylmää = It is cold

That is a different structure. There is no subject like tuuli there.

So:

• Tuuli on kylmä = the wind is cold
• On kylmää = it is cold

Because koska introduces a subordinate clause, and Finnish normally separates that from the main clause with a comma.

So the sentence has:

• main clause: Vedän hupun ylös
• subordinate clause: koska tuuli on kylmä

That gives:

• Vedän hupun ylös, koska tuuli on kylmä.

This comma is standard Finnish punctuation.

Yes, it is natural and understandable.

It means pulling the hood upward into place. In everyday Finnish, that works well.

You might also hear:

• Vedän hupun päähän = I pull the hood onto my head

That version focuses a bit more on the hood ending up on your head, while ylös focuses more on the upward movement.

So the original sentence is good Finnish, and there are just slightly different natural ways to say nearly the same thing.