Pagi ini ada gerimis, jadi saya memakai mantel tipis ke kampus.

Indonesian often expresses weather in a simpler way than English. In Pagi ini ada gerimis, ada means there is / there was, so the phrase literally feels like This morning there was drizzle.

Unlike English, Indonesian does not need a verb like to be in the same way, and it also does not need a progressive form like is raining here.

Here ada means there is / there exists / there was. It introduces the presence of something.

So:

• ada gerimis = there is drizzle / it is drizzling
• ada hujan = there is rain

In this sentence, ada is not the same as English have. It is showing that drizzle is present.

Not exactly.

• hujan = rain
• gerimis = drizzle, light rain

So gerimis is more specific. It suggests a light, fine rain rather than regular or heavy rain.

Pagi ini is the normal way to say this morning in Indonesian.

The pattern is often:

• pagi ini = this morning
• hari ini = today
• minggu ini = this week
• tahun ini = this year

Putting ini after the noun is very common in Indonesian when it means this.

Jadi means so, therefore, or as a result.

It connects the two ideas:

• There was drizzle this morning
• so I wore a thin coat to campus

It shows that the second clause is the result of the first one.

Yes. Memakai can mean to use, to wear, or to put on/use something, depending on the object.

Examples:

• memakai mantel = to wear a coat
• memakai sepatu = to wear shoes
• memakai komputer = to use a computer

So in this sentence, because the object is mantel, memakai clearly means wear.

Pakai is the base form, and memakai is the meN- verb form built from it.

Very roughly:

• pakai is common in casual speech
• memakai sounds more standard, complete, and slightly more formal

Both can be used in everyday Indonesian, but memakai is especially common in textbook or careful written style.

For example:

• Saya pakai jaket. = casual
• Saya memakai jaket. = standard / slightly more formal

In Indonesian, adjectives usually come after the noun.

So:

• mantel tipis = thin coat
• rumah besar = big house
• buku baru = new book

This is one of the most important word-order differences from English.

Indonesian does not usually use articles like English a, an, or the.

So mantel tipis can mean:

• a thin coat
• the thin coat

The exact meaning depends on context. In this sentence, English would naturally translate it as a thin coat, but Indonesian does not need a separate article.

Ke is a preposition meaning to when talking about movement toward a place.

So:

• ke kampus = to campus
• ke sekolah = to school
• ke rumah = home / to the house

Here it shows the destination of the action: the speaker wore the coat to campus.

Most naturally, it means I wore a thin coat to campus.

Indonesian often allows this kind of compact phrasing. The idea is that the speaker had the coat on when going to campus.

If someone wanted to be more explicit about the sequence, they could say something like:

• jadi saya memakai mantel tipis saat pergi ke kampus
  = so I wore a thin coat when going to campus

But the original sentence is normal and natural.

Indonesian usually does not mark tense on the verb the way English does. Time is understood from context or time expressions.

In this sentence, Pagi ini gives the time: this morning.

So even though memakai itself does not change form for past or present, the whole sentence is understood from context as referring to what happened this morning.

In weather expressions, Indonesian often does not use a dummy subject like English it.

English says:

• It is drizzling

Indonesian can simply say:

• Ada gerimis
• Gerimis
• Sedang gerimis in some contexts

So the first clause does not need a subject equivalent to English it.

Saya is a very common and polite word for I. It works well in neutral, standard Indonesian.

Other possibilities exist, depending on situation:

• aku = more informal, personal
• gue = very informal, colloquial in some regions

So saya is a safe and standard choice, especially in learning materials.