Al febrer fa més fred que al març, però al març els dies ja són més llargs.

Al is the contraction of a + el.

• a = to / at / in
• el = the
• al = to the / in the

In expressions of time, Catalan often uses al with months to mean in a month:

• al febrer = in February
• al març = in March

So Al febrer fa més fred means literally something like In the February, it makes more cold, but naturally it means In February it is colder.

Catalan often uses the definite article in places where English does not. Months can appear with the article in time expressions like:

• al gener
• al febrer
• al març

This is normal Catalan usage. English learners often want to drop the article because English does, but in Catalan al febrer and al març are the natural forms here.

For weather, Catalan very often uses fer:

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

Literally, fa fred means it makes cold, but that is just the Catalan way of expressing weather. You should learn fa fred as a fixed weather expression.

Catalan does not need a dummy subject like English it in weather expressions.

English:

• It is cold
• It is hotter in July

Catalan:

• Fa fred
• Fa més calor al juliol

The verb can stand without an expressed subject in this kind of sentence.

Més means more. It is used to form comparatives.

• més fred = colder
• més llargs = longer

Then Catalan uses que for than:

• més fred que al març = colder than in March
• més llargs = longer

So:

• fa més fred que al març = it is colder than in March

In comparisons, Catalan uses que to mean than:

• més ... que = more ... than
• menys ... que = less ... than
• tan ... com = as ... as

Examples:

• És més alt que jo = He is taller than me
• Fa més fred que ahir = It is colder than yesterday

So fa més fred que al març means it is colder than in March.

Però means but. It is written with a grave accent: ò.

This is simply the correct spelling in Catalan:

• però = but

The accent also helps mark the stressed vowel. It is a very common word, so it is worth memorizing exactly as written.

Catalan often uses the definite article more than English does, especially with general plural nouns.

• els dies = the days

Here els dies refers to days in general during that time of year, so the article is natural in Catalan:

• al març els dies ja són més llargs

English would usually just say days are already longer, but Catalan prefers the days.

Ja usually means already, though depending on context it can also mean things like now, by now, or add a sense of change.

Here:

• els dies ja són més llargs = the days are already longer

It suggests that by March, this change has begun: the days have started to become longer.

Catalan usually uses ser for general, defining, or descriptive qualities, and estar more for states or locations.

Here, llargs describes a characteristic of the days in March, so ser is used:

• els dies són més llargs = the days are longer

Using estar here would sound unnatural in standard Catalan. Length is treated as a quality, not a temporary state.

Because it agrees with els dies, which is masculine plural.

• el dia = the day
• els dies = the days

So the adjective must also be masculine plural:

• llarg = long
• llargs = long / longer, masculine plural

That is why Catalan says:

• els dies són més llargs

If the noun were feminine singular, the adjective would change:

• la nit és més llarga = the night is longer

In fa fred, fred is part of a weather expression, not an adjective agreeing with a noun.

So in:

• fa fred
• fa més fred

fred stays the same. It is not matching a noun like dia or nit.

Compare:

• un dia fred = a cold day → here fred is an adjective
• fa fred = it is cold → here it is part of the impersonal weather expression

Catalan word order is fairly flexible, but this order is very natural:

• al març = sets the time frame first
• els dies = the subject
• ja = already
• són més llargs = are longer

So the sentence is structured as:

In March, the days are already longer.

You could move elements around for emphasis, but this version sounds neutral and clear.

Sometimes you may hear en with months in some contexts or varieties, but in this sentence al febrer and al març are the standard, natural choices.

For a learner, it is safest to remember:

• al febrer
• al març

especially in this kind of general statement about what happens during a month.

The letter ç in Catalan is called ce trencada. It represents an s sound before a, o, or u.

So març is pronounced roughly like mars, not like mark.

A few useful points:

• març sounds approximately like mars
• febrer sounds roughly fe-BRER
• llargs begins with the Catalan ll, which can vary by accent

The ç is just the normal spelling needed to keep the soft s sound.

It is talking about them in a general, habitual sense.

• Al febrer fa més fred que al març = In February it is colder than in March
• al març els dies ja són més llargs = in March the days are already longer

This is not about one particular year only. It expresses a general seasonal fact.