Quan fa fred, prefereixo una sopa calenta.

Quan means when.

In this sentence, Quan fa fred means When it’s cold.

A useful extra point: quan can also be used in questions:

• Quan véns? = When are you coming?

So quan works both:

• in statements/subordinate clauses: Quan fa fred...
• in direct questions: Quan...?

This is a very common weather expression in Catalan.

Fa fred literally looks like it makes cold, but it simply means it’s cold or the weather is cold.

Catalan often uses fer for weather conditions:

• fa fred = it’s cold
• fa calor = it’s hot
• fa vent = it’s windy
• fa sol = it’s sunny

By contrast, és fred usually describes a thing or person as being cold in nature:

• El gel és fred. = Ice is cold.

So in weather contexts, fa fred is the natural choice.

Prefereixo is the 1st person singular present tense form of preferir in standard Central Catalan.

So:

• jo prefereixo = I prefer

This verb belongs to a group of -ir verbs that often add -eix- in some forms. This is called the incoative pattern.

For example:

• prefereixo = I prefer
• prefereixes = you prefer
• prefereix = he/she prefers
• preferim = we prefer
• preferiu = you all prefer
• prefereixen = they prefer

You may also encounter regional variation, especially in Valencian, where forms like preferisc can appear. But prefereixo is perfectly standard and very common.

Catalan often drops subject pronouns because the verb ending already shows who the subject is.

So:

• prefereixo already means I prefer

You can add jo if you want emphasis or contrast:

• Jo prefereixo una sopa calenta. = I prefer a hot soup / As for me, I prefer a hot soup.

But in a neutral sentence, leaving out jo is completely normal.

Because sopa is a feminine singular noun, and both the article and the adjective must agree with it.

Breakdown:

• una = feminine singular a
• sopa = soup (feminine)
• calenta = hot (feminine singular form of calent)

Agreement in Catalan is very important:

• un cafè calent = a hot coffee
• una sopa calenta = a hot soup
• unes begudes fredes = some cold drinks

So calenta matches sopa in gender and number.

In this sentence, una sopa calenta sounds natural because it refers to a hot soup as a serving or choice.

Catalan usually prefers an article or determiner in cases like this. So:

• prefereixo una sopa calenta = I prefer a hot soup

If you remove una, the sentence may sound less natural in many contexts, unless you are speaking more generally or elliptically.

English often allows bare nouns more freely:

• I prefer hot soup

Catalan more often wants something like:

• prefereixo una sopa calenta or sometimes
• prefereixo la sopa calenta depending on the meaning

So una is a very natural way to express the idea here.

In Catalan, adjectives often come after the noun, especially when they describe a quality in a straightforward way.

So:

• una sopa calenta = a hot soup
• un cotxe vermell = a red car
• una casa gran = a big house

Some adjectives can come before the noun, but that often changes the tone or meaning. For a basic descriptive adjective like calenta, placing it after the noun is the normal pattern.

Yes, it is natural and correct.

Quan fa fred is an introductory subordinate clause:

• When it’s cold, ...

Catalan commonly places a comma after this kind of opening clause, just as English often does:

• When it’s cold, I prefer a hot soup.

So the comma helps separate the time clause from the main clause:

• Quan fa fred, / prefereixo una sopa calenta.

A simple approximate pronunciation is:

Kwan fa fret, pre-fe-REI-shu OO-na SO-pa ka-LEN-ta

A slightly more Catalan-leaning guide:

• Quan ≈ kwan
• fa ≈ fa
• fred ≈ fret
• prefereixo ≈ preh-feh-REY-shoo or pruh-fuh-REY-shoo depending on accent
• una ≈ OO-na
• sopa ≈ SO-pa
• calenta ≈ ka-LEN-ta

A few sound notes:

• x in prefereixo sounds like sh
• final d in fred is often pronounced like t
• the rolled or tapped r may sound different from English r

Yes. Quan can mean when, and in context it can also have the broader sense of whenever.

So this sentence can be understood as:

• When it’s cold, I prefer a hot soup
• Whenever it’s cold, I prefer hot soup

The exact English translation depends on context, but the Catalan sentence works well for either general idea.