Kalau cuaca cerah, kami bersepeda bersama-sama ke taman kota.

In this sentence, kalau means if:

• Kalau cuaca cerah = If the weather is clear / If the weather is nice

Yes, it is similar to jika, which also means if. The difference is mostly in tone:

• kalau = more common in everyday speech
• jika = a bit more formal or written

So this sentence could also be:

• Jika cuaca cerah, kami bersepeda bersama-sama ke taman kota.

Both are correct.

Indonesian often does not use a verb like is / am / are in simple descriptive sentences.

• cuaca cerah literally looks like weather clear
• In natural English, that becomes the weather is clear

This is very normal in Indonesian:

• Dia senang = He/She is happy
• Rumah itu besar = That house is big
• Cuaca cerah = The weather is clear

So the missing is is not actually missing in Indonesian grammar; it is simply usually not needed.

That first part is a conditional clause: If the weather is clear.

Indonesian often places this condition at the beginning, followed by the main action:

• Kalau cuaca cerah, kami bersepeda...
• If the weather is clear, we cycle...

You can also change the order:

• Kami bersepeda bersama-sama ke taman kota kalau cuaca cerah.

That is also understandable, though the version with kalau at the beginning is very common.

This is a very important Indonesian distinction.

• kami = we, but not including the listener
• kita = we, including the listener

So:

• kami bersepeda = we cycle, but you are not part of the group
• kita bersepeda = we cycle, and you are included

In this sentence, kami suggests that the speaker is talking about their group going cycling, but not the person they are speaking to.

Yes. Sepeda means bicycle, and bersepeda means to ride a bicycle / to cycle.

The prefix ber- often forms an intransitive verb, often meaning to do something involving the noun.

• sepeda = bicycle
• bersepeda = to bicycle / to cycle

Some similar examples:

• jalan = road / walk → berjalan = to walk
• bicara = speech → berbicara = to speak

So kami bersepeda means we go cycling or we ride bicycles.

Both can be used, but they are slightly different in feel.

• bersepeda = to cycle / to go bicycling
• naik sepeda = to ride a bicycle

In many situations, they are very close in meaning. But:

• bersepeda often sounds like the activity itself
• naik sepeda focuses a bit more on being on the bicycle

So this sentence:

• kami bersepeda bersama-sama ke taman kota

sounds very natural for we go cycling together to the city park.

Bersama-sama means together.

It comes from bersama, which means together / with. The repetition adds emphasis and makes it a very common expression meaning all together or jointly.

So:

• kami bersepeda bersama-sama = we cycle together

You may also hear just bersama, depending on the sentence, but bersama-sama is very common and natural.

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

• ke taman kota = to the city park

Examples:

• Saya pergi ke sekolah. = I go to school.
• Mereka datang ke rumah saya. = They come to my house.

A useful comparison:

• ke = to
• di = at / in
• dari = from

So:

• ke taman kota = to the city park
• di taman kota = at the city park
• dari taman kota = from the city park

Indonesian often puts nouns together directly, where English might use of, an adjective, or a different noun order.

• taman = park / garden
• kota = city
• taman kota = city park

So the second noun modifies the first one.

Other examples:

• rumah sakit = hospital
• taman bermain = playground
• bus kota = city bus

Also, Indonesian usually does not have a word exactly like English the. Whether something is definite is often understood from context.

No. Cerah generally means bright, clear, or sunny, depending on context.

In this sentence:

• cuaca cerah = clear weather / sunny weather / nice weather

It can also describe other things, for example:

• langit cerah = clear sky
• warna cerah = bright color

So cerah is broader than just weather, but weather is one very common use.

The comma separates the conditional part from the main clause:

• Kalau cuaca cerah, = If the weather is clear,
• kami bersepeda bersama-sama ke taman kota. = we cycle together to the city park.

This is similar to English punctuation. When the if clause comes first, a comma is often used.

In casual writing, Indonesian punctuation can be less strict, and you may sometimes see the sentence without a comma. But using the comma here is standard and helpful.

Yes. Indonesian verbs do not change form the way English verbs do, so context matters.

• kami bersepeda bersama-sama ke taman kota could mean:
  • we cycle together to the city park
  • we will cycle together to the city park
  • we go cycling together to the city park

With kalau cuaca cerah, it often sounds like a general habit or a plan that depends on the weather:

• If the weather is nice, we cycle together to the city park.
• If the weather is nice, we’ll cycle together to the city park.

Both are possible depending on context.

More or less, yes:

• Kalau = if
• cuaca = weather
• cerah = clear / bright
• kami = we (not including you)
• bersepeda = cycle / ride bicycles
• bersama-sama = together
• ke = to
• taman kota = city park

A very literal version would be:

• If weather clear, we cycle together to city park.

But natural English would be:

• If the weather is clear, we cycle together to the city park.
• If the weather is nice, we go cycling together to the city park.

So the literal mapping is useful for learning, but the natural translation sounds smoother in English.