Nhiệt độ tăng.

Here tăng functions as a verb, meaning to rise / to increase.

So the sentence structure is:

• Nhiệt độ = subject
• tăng = verb/predicate

Vietnamese often allows a simple subject + verb sentence like this, with no extra words needed.

Vietnamese usually does not need a verb like to be in sentences of this kind.

In English, you often say The temperature is rising, but Vietnamese can simply say:

• Nhiệt độ tăng.

This is normal and complete. Vietnamese frequently expresses ideas more directly, without adding a separate is/am/are.

Yes, it is a complete and natural sentence.

It has:

• a subject: nhiệt độ
• a predicate: tăng

That is enough in Vietnamese. You do not need an object or extra marker for the sentence to be grammatical.

It can match both increase and rise in English, depending on context.

With nhiệt độ (temperature), natural English translations are often:

• The temperature rises
• The temperature is rising
• The temperature increases
• The temperature is increasing

So tăng is a flexible verb whose best English translation depends on the noun and the situation.

Vietnamese does not usually mark tense on the verb itself. Instead, time is understood from:

• context
• time words
• optional markers such as đã, đang, sẽ

So:

• Nhiệt độ tăng. = general / context-dependent
• Nhiệt độ đang tăng. = the temperature is rising
• Nhiệt độ đã tăng. = the temperature has increased / increased
• Nhiệt độ sẽ tăng. = the temperature will increase

Without a time marker, the sentence is often interpreted from the situation.

Yes.

Depending on context, it can mean:

• a general statement: Temperature increases
• a current event: The temperature is rising
• a reported change: The temperature increased

If you want to make the meaning more specific, you can add markers:

• đang for something happening now
• đã for something completed
• sẽ for future

Vietnamese does not use articles the same way English does. There is usually no direct equivalent of a/an/the in a sentence like this.

So nhiệt độ can mean:

• temperature
• the temperature

The exact interpretation depends on context.

For example, in a weather report, Nhiệt độ tăng would often naturally mean The temperature is rising.

Nhiệt độ is the standard Vietnamese noun for temperature.

It is made of Sino-Vietnamese elements:

• nhiệt = heat
• độ = degree

You do not need to analyze it every time, but knowing this can help you recognize it in scientific, medical, or weather-related language.

A rough English-friendly guide is:

• nhiệt độ ≈ nyeet doh
• tăng ≈ tung / tuhng (with the Vietnamese ă, which is shorter than English a)

Important tone notes:

• nhiệt has a heavy/falling-glottal tone
• độ has a heavy/falling-glottal tone
• tăng has a level tone

Also note:

• đ is pronounced like English d
• plain d in Vietnamese is different, so độ is not the same as dộ

If you are learning pronunciation, it is best to listen to native audio, because the vowels and tones matter a lot.

Both can be used to talk about something going up.

• Nhiệt độ tăng. = The temperature rises / increases.
• Nhiệt độ tăng lên. = The temperature goes up / rises up.

In many situations, the difference is small. Tăng lên can sound a bit more explicit about the upward change, while tăng alone is already perfectly natural and common.

Yes, very often. Tăng is widely used with many things that can go up or increase, such as:

• giá tăng = prices increase
• dân số tăng = the population increases
• lương tăng = salary increases
• áp suất tăng = pressure increases

So learning tăng as a general go up / increase verb is very useful.

It is neutral and very natural. It works especially well in:

• weather reports
• science contexts
• news
• everyday conversation

In conversation, people might also say things like:

• Nhiệt độ đang tăng.
• Trời đang nóng lên. = It’s getting hotter.

So Nhiệt độ tăng is natural, but depending on context, a speaker may choose a fuller version.

You can add words for time, degree, speed, or result. For example:

• Nhiệt độ đang tăng. = The temperature is rising.
• Nhiệt độ tăng nhanh. = The temperature is rising quickly.
• Nhiệt độ tăng mạnh. = The temperature is increasing sharply.
• Nhiệt độ tăng lên 30 độ. = The temperature rises to 30 degrees.
• Nhiệt độ đã tăng rồi. = The temperature has already increased.

This basic sentence is a good foundation, and you can build on it easily.