Halijoto ni digrii thelathini.

Halijoto means temperature. In this sentence, it is the subject: Halijoto ni digrii thelathini = The temperature is thirty degrees.

A related word is joto, which means heat or warmth and can also be used in everyday speech for hot weather. But halijoto is the more precise word for temperature.

Ni is the word that links the subject to what is being said about it. In sentences like this, it works like is/are in English.

So:

• Halijoto = temperature
• ni = is
• digrii thelathini = thirty degrees

Together: The temperature is thirty degrees.

Swahili does not usually have a separate word for the or a/an like English does.

So halijoto can mean:

• temperature
• the temperature
• sometimes even a temperature, depending on context

The context tells you which meaning is intended.

It breaks down like this:

• digrii = degrees
• thelathini = thirty

So digrii thelathini literally means degrees thirty, but in natural English we say thirty degrees.

In Swahili, numbers often come after the noun they describe.

So:

• digrii thelathini = thirty degrees
• literally: degrees thirty

This word order is normal in Swahili. English does it the other way around.

A simple pronunciation guide is:

• ha-li-JO-to
• nee
• di-GRII
• the-la-THI-ni

A few helpful points:

• Swahili words are usually pronounced quite consistently as written.
• Stress normally falls on the second-to-last syllable:
  • haliJOto
  • diGRII
  • thelaTHIni
• th in thelathini is like the th in think, not like the th in this.

Here it means degrees, and in everyday use digrii is commonly used the same way regardless of whether English would say degree or degrees.

For example:

• digrii moja = one degree
• digrii thelathini = thirty degrees

So you can think of digrii as a borrowed unit word that does not change much in form.

You can add the scale after the number phrase:

• Halijoto ni digrii thelathini Selsiasi. = The temperature is 30 degrees Celsius.
• Halijoto ni digrii thelathini Farenhaiti. = The temperature is 30 degrees Fahrenheit.

In many contexts, if everyone already knows the scale being used, people may simply say digrii thelathini.

You may hear joto in everyday speech, but halijoto is more precise for temperature.

So:

• Halijoto ni digrii thelathini = more exact, especially in formal or educational contexts
• Joto ni digrii thelathini = may be understood, but it is less precise

If you are learning standard, clear Swahili, halijoto is the safer choice here.

Not in this sentence. The structure is simple:

• Halijoto = subject
• ni = linking word
• digrii thelathini = predicate phrase

Because ni is used as the linker, you do not need extra agreement marking here.

People might understand you from context, but it is better to include digrii if you are talking about temperature measurement.

So the clearer version is:

• Halijoto ni digrii thelathini.

Including the unit makes the sentence complete and natural.

You keep the same structure and only change the number:

• Halijoto ni digrii kumi. = The temperature is ten degrees.
• Halijoto ni digrii ishirini. = The temperature is twenty degrees.
• Halijoto ni digrii arobaini. = The temperature is forty degrees.

So the pattern is:

Halijoto ni digrii + number

Yes. It is a clear and natural way to state a temperature.

It sounds especially natural in contexts like:

• weather reports
• science class
• talking about room temperature
• discussing measurements

In very casual conversation, people might use shorter or less formal wording, but Halijoto ni digrii thelathini is correct and natural.