Tengo calor en el vestíbulo.

Spanish usually expresses physical states like hot, cold, hungry, and thirsty with tener + noun:

• tengo calor = I’m hot
• tengo frío = I’m cold
• tengo hambre = I’m hungry
• tengo sed = I’m thirsty

So even though English uses to be, Spanish often uses to have for these ideas.

Tengo is the yo form of the verb tener in the present tense.

• yo tengo = I have
• tú tienes = you have
• él/ella tiene = he/she has

Since the sentence is talking about I, tengo is the correct form.

Calor is a noun meaning heat. In the expression tener calor, it means to feel hot.

So literally, tengo calor is something like I have heat, but naturally it means I’m hot.

No. In this expression, Spanish normally says tener calor, not tener el calor.

That is the standard pattern:

• tener calor
• tener frío
• tener hambre
• tener sed

Adding el would usually change the meaning or sound unnatural in this context.

Usually, no—not if you just mean I feel hot.

In many Spanish-speaking contexts, estoy caliente can sound like I’m sexually aroused. In some places it can also have other meanings, but it is generally not the safe choice for a beginner.

If you mean physical heat, use:

• tengo calor

It is a prepositional phrase showing location.

• en = in
• el vestíbulo = the lobby / the vestibule / the entrance hall

So en el vestíbulo tells you where the speaker feels hot.

Spanish usually uses the definite article with places like this.

So you normally say:

• en el vestíbulo
• en la cocina
• en el hotel
• en la oficina

Leaving out el here would sound unnatural.

Vestíbulo means lobby, entrance hall, or foyer, depending on context.

It is a correct word, but in everyday speech, some people may use other words depending on the country and situation, such as:

• la entrada = the entrance
• el lobby = the lobby
• la recepción = the reception area

So vestíbulo is fine, but it may sound a bit formal or building-specific in some contexts.

Yes. Spanish allows some flexibility in word order.

These are all possible, depending on emphasis:

• Tengo calor en el vestíbulo.
• En el vestíbulo tengo calor.

The original version is the most neutral. Starting with En el vestíbulo puts more focus on the location.

It is pronounced roughly bes-TEE-boo-loh.

A few helpful points:

• The v in Spanish often sounds similar to a soft b
• The stress falls on tí because of the written accent: ves-TÍ-bu-lo
• The u is pronounced clearly, like oo

Yes, but the meaning changes.

• Tengo calor en el vestíbulo = I am hot in the lobby
• Hace calor en el vestíbulo = It is hot in the lobby

So:

• tengo calor describes how a person feels
• hace calor describes the temperature of a place or the weather

Calor is masculine:

• el calor

That matters when you use articles or adjectives with it, for example:

• el calor intenso
• mucho calor

But in tengo calor, you do not see the article.

Yes. A very common way is to add mucho:

• Tengo mucho calor en el vestíbulo. = I’m very hot in the lobby.

You could also say:

• Tengo demasiado calor en el vestíbulo. = I’m too hot in the lobby.

Yes, and that is normal.

Spanish often drops subject pronouns because the verb ending already shows who the subject is. Tengo already tells us the subject is yo.

So:

• Tengo calor en el vestíbulo. = normal
• Yo tengo calor en el vestíbulo. = also correct, but with extra emphasis on I