Sıcaklık sıfır derece.

Word by word:

• sıcaklık = temperature
• sıfır = zero
• derece = degree

So the structure is basically:

• Sıcaklık → the topic, temperature
• sıfır derece → the description/predicate, zero degrees

Also, sıcaklık is related to sıcak meaning hot/warm, plus the suffix -lık, which often forms nouns.

That is very normal in Turkish.

In present-tense sentences where one noun or adjective describes another, Turkish often leaves out the verb to be in the 3rd person.

So:

• Sıcaklık sıfır derece. = The temperature is zero degrees.

Turkish does not need a separate word like English is here.

If you want a more formal or emphatic version, you can add -dir:

• Sıcaklık sıfır derecedir.

That still means the same thing, but it sounds more formal, written, or definitive.

In Turkish, nouns after numbers usually stay singular, not plural.

So you say:

• bir derece = one degree
• iki derece = two degrees
• beş derece = five degrees
• sıfır derece = zero degrees

This is a general Turkish rule, not something special about derece.

So sıfır dereceler would sound wrong in this context.

Turkish has no definite article like English the.

So a bare noun such as sıcaklık can mean:

• temperature
• the temperature

The exact meaning comes from context.

In this sentence, English naturally translates it as the temperature, even though Turkish does not say the explicitly.

Sıcaklık sıfır derece is correct and understandable.

But in everyday speech, Turkish speakers might also say:

• Hava sıfır derece. = It’s zero degrees outside.
• Hava sıcaklığı sıfır derece. = The air temperature is zero degrees.

So:

• sıcaklık is fine and clear
• hava sıcaklığı is more specific
• hava sıfır derece is very common in casual speech

A rough English-style guide is:

• sıcaklık ≈ suh-JAHK-luk
• sıfır ≈ suh-fuhr
• derece ≈ deh-reh-jeh

Two important pronunciation points:

• ı is the dotless i. It is not like English ee. It sounds more like a short, relaxed uh sound.
• c in Turkish is pronounced like English j in job. So derece ends with a j sound, not a hard k or s sound.

Yes.

• Sıcaklık sıfır derece.
• Sıcaklık sıfır derecedir.

Both are correct.

The version without -dir is more neutral and common in everyday speech. The version with -dir is more:

• formal
• textbook-like
• official
• emphatic

So in normal conversation, the shorter version is usually more natural.

Usually, yes.

In Turkey, when people talk about weather and just say derece, they normally mean degrees Celsius unless another scale is mentioned.

So:

• Sıfır derece usually means zero degrees Celsius

If you needed to be explicit, you could say:

• sıfır derece Celsius
• sıfır derece Fahrenheit

But in everyday Turkish weather talk, Celsius is generally understood.

This order is natural because Turkish typically puts the main description or predicate at the end.

So here:

• Sıcaklık = what we are talking about
• sıfır derece = what we say about it

That makes Sıcaklık sıfır derece the normal order.

Turkish word order can change for emphasis, but not every rearrangement sounds natural. For this basic statement, keeping sıfır derece at the end is the safest and most standard choice.

No.

Sıcaklık can refer to temperature in general, for example:

• room temperature
• body temperature
• water temperature
• air temperature

So it is a broad word meaning temperature, not just outdoor weather.

Depending on context, it can also suggest warmth/heat, but in a sentence like Sıcaklık sıfır derece, the meaning is clearly temperature.