Если на улице ветрено, я надеваю капюшон и иду быстрее.

In Russian, если basically means if, but in sentences about regular habits or general situations, it often feels very close to when/whenever in English.

So:

• Если на улице ветрено, я надеваю капюшон и иду быстрее. = If it’s windy outside, I put my hood up and walk faster. = very naturally also Whenever it’s windy outside...

This sentence is not about one specific future event. It describes a usual reaction, so the present tense is normal in Russian.

На улице literally means on the street, but very often it really means outside / outdoors.

Examples:

• На улице холодно. = It’s cold outside.
• На улице темно. = It’s dark outside.

For weather and general outdoor conditions, Russian commonly uses на улице. You should think of it as a set expression.

Why на?

Because Russian often conceptualizes certain places and situations differently from English. Here, улица is treated as an open outdoor space, so на is idiomatic. You usually just learn на улице as a chunk meaning outside.

Ветрено is a predicative word used to describe weather or general conditions. In English, the closest translation is it is windy.

So:

• На улице ветрено. = It’s windy outside.

It looks similar to an adverb because of the -о ending, but here it is not modifying a verb. It is acting as the main idea of an impersonal sentence about the environment.

This pattern is very common in Russian:

• холодно = cold
• жарко = hot
• темно = dark
• тихо = quiet
• ветрено = windy

In the present tense, Russian usually does not use a verb like is in this kind of sentence.

English:

• It is windy.

Russian:

• Ветрено.
• На улице ветрено.

So the verb to be is simply omitted in the present tense.

Compare:

• Сегодня холодно. = It is cold today.
• В комнате тихо. = It is quiet in the room.

This is completely normal Russian grammar.

Because Если на улице ветрено is a subordinate clause introduced by если.

Russian punctuation normally separates this clause from the main clause with a comma:

• Если на улице ветрено, я надеваю капюшон и иду быстрее.

This is similar to English when the if-clause comes first:

• If it’s windy outside, I put my hood up and walk faster.

If the main clause comes first, Russian still usually keeps the comma:

• Я надеваю капюшон и иду быстрее, если на улице ветрено.

Надеваю is the imperfective present form of надевать. It is used here because the sentence describes a repeated or habitual action.

• Если на улице ветрено, я надеваю капюшон... = When it’s windy, I put my hood on / up.

If you used надену, that would be perfective future:

• Если на улице будет ветрено, я надену капюшон. = If it’s windy, I’ll put my hood on.

So:

• надеваю = I put on / I am putting on / I usually put on
• надену = I will put on

In this sentence, the habitual meaning makes надеваю the right choice.

This is a very common question.

• надевать / надеть = to put on something
• одевать / одеть = to dress someone

So in this sentence:

• я надеваю капюшон = I put on my hood / I pull up my hood

That is correct because капюшон is the thing being put on.

Compare:

• Я надеваю куртку. = I put on a jacket.
• Я одеваю ребёнка. = I dress the child.

A common learner mistake is using одеваю капюшон, but standard Russian prefers надеваю капюшон.

Капюшон is the direct object of надеваю, so it is in the accusative case.

However, for many masculine inanimate nouns, the accusative singular looks exactly like the nominative singular.

So:

• Nominative: капюшон
• Accusative: капюшон

That is why you do not see a visible ending change.

Compare with a feminine noun, where the change is clearer:

• Я надеваю шапку.
  • nominative: шапка
  • accusative: шапку

Both are possible, but they mean slightly different things.

• иду быстро = I walk quickly / fast
• иду быстрее = I walk faster

In your sentence, быстрее suggests a comparison:

• faster than usual
• faster because of the wind

So the idea is:

• If it’s windy outside, I put my hood up and walk faster.

If you said иду быстро, it would simply mean I walk fast, without emphasizing the change caused by the wind.

Here быстрее functions adverbially: it describes how the person walks.

It comes from быстро (quickly), and быстрее is the comparative form:

• быстро = quickly
• быстрее = more quickly / faster

So:

• Я иду быстро. = I walk quickly.
• Я иду быстрее. = I walk faster.

Russian often uses the same comparative form where English uses either an adjective or an adverb form.

This is about Russian verbs of motion.

• идти / иду = to go on foot in one direction, or in a specific instance
• ходить / хожу = to go on foot in general, repeatedly, or to and from

In this sentence, иду быстрее means something like I walk faster in that situation, as a concrete action.

• Если на улице ветрено, я ... иду быстрее.

Using иду sounds natural because it refers to what you do at that moment or in each such situation.

A sentence with хожу would feel more like talking about a general habit of walking as an activity, rather than the immediate action in response to the wind.

Yes, often it could be.

Russian frequently omits subject pronouns when the verb already makes the person clear.

So you could say:

• Если на улице ветрено, надеваю капюшон и иду быстрее.

That is understandable and natural in the right context.

Why include я then?

• for clarity
• for emphasis
• because it sounds slightly more explicit and learner-friendly
• to match the English-style structure more clearly

So both versions are possible, but я is not wrong at all.

Yes. Russian word order is flexible, although some orders sound more natural than others depending on emphasis.

The original:

• Если на улице ветрено, я надеваю капюшон и иду быстрее.

Possible variations:

• Я надеваю капюшон и иду быстрее, если на улице ветрено.
• Если на улице ветрено, я иду быстрее и надеваю капюшон.
  This is grammatical, but the order of actions sounds a little different.

The original version is very natural because it presents:

1. the condition
2. then the actions that follow from it

In normal everyday usage, надевать капюшон usually means to put up / pull up your hood.

Russian uses надеть/надевать with капюшон, even though in English we often say pull up your hood rather than put on your hood.

So:

• я надеваю капюшон naturally means
• I put my hood up / I pull up my hood

It does not usually suggest a strange detachable hood unless the context specifically says so.