سيبت الجاكت في البيت عشان الجو كان حر.

A common pronunciation would be:

sibt il-gākit fil-bēt ʿašān il-gaww kān ḥarr

A few notes:

• سيبت → sibt
• الجاكت → often something like il-gākit in speech
• في البيت often gets linked and sounds like fil-bēt
• الجو is usually pronounced il-gaww
• حر sounds like ḥarr with a strong, doubled r

سيبت means I left.

It comes from the Egyptian Arabic verb ساب / يسيب, which means to leave.

So:

• ساب = he left
• سيبت = I left
• سيب = leave! (command)

In this sentence, it means I left behind, not I departed. So the idea is: I left the jacket at home.

Because the verb already tells you the subject.

In سيبت, the ending shows that the speaker is I. So Egyptian Arabic often drops أنا unless it is needed for emphasis.

So both are possible:

• سيبت الجاكت في البيت
• أنا سيبت الجاكت في البيت

The second one is more emphatic, like I’m the one who left the jacket at home.

It’s a borrowed word, and that is very normal in Egyptian Arabic.

الجاكت is a colloquial word for jacket, borrowed from English. In real life, you may also see spellings like:

• الجاكت
• الجاكيت

Egyptian Arabic uses lots of everyday loanwords, especially for clothing and modern objects. So this is completely natural speech.

Literally, في البيت means in the house.

But in natural English, here it usually means at home.

That is very common in Arabic: في can cover meanings like in and at, depending on context.

So:

• في البيت = in the house
• naturally here = at home

عشان is a very common Egyptian Arabic word meaning:

• because
• sometimes so that / in order to, depending on context

Here it clearly means because:

• سيبت الجاكت في البيت عشان الجو كان حر
• I left the jacket at home because the weather was hot

It is very common in spoken Egyptian Arabic. A more formal written equivalent would often be لأن.

كان puts the description in the past.

• الجو حر = the weather is hot
• الجو كان حر = the weather was hot

So in this sentence, the speaker is explaining a past action:

• I left the jacket at home
• because the weather was hot

Without كان, it would sound like the weather is hot now, or like a general present-time statement.

In Egyptian Arabic, حر is the normal everyday way to say that the weather is hot.

So:

• الجو حر = the weather is hot

A learner who knows Modern Standard Arabic may expect حار, but in Egyptian speech حر is what you will commonly hear for weather.

So this sentence sounds natural and colloquial.

Both are possible.

• الجو كان حر
• كان الجو حر

Both mean the weather was hot.

The version in your sentence, الجو كان حر, is very natural in spoken Egyptian Arabic. It starts with the topic, the weather, and then comments on it.

Very roughly:

• الجو كان حر = more conversational, topic-first
• كان الجو حر = also correct, sometimes feels a bit more neutral or more like written structure

So the sentence you have is completely normal.