Portuguese Phrase
Sim, vai esfriar.
Meaning
Literally “Yes, it’s going to get cold.” The speaker is confirming a prediction or warning that the temperature will drop soon.
When to use
Use this phrase when someone mentions that the weather might change, or when you want to confirm a forecast, a cooling of a drink, or a room becoming chilly.
✦Grammar Breakdown
Simvaiesfriar
Sim
A simple affirmative particle meaning “yes”. It can stand alone or precede a statement to confirm it.
Vai + infinitive
The periphrastic future: the verb *ir* in the present tense + an infinitive expresses a near‑future action (e.g., “vai esfriar” = “it’s going to get cold”).
Esfriar
Infinitive verb meaning “to become cold” or “to cool down”. Used for weather, drinks, rooms, etc.
🗨In Conversation
Parece que o céu está ficando escuro. Vai chover?
It looks like the sky is getting dark. Will it rain?
Sim, vai esfriar e pode chover à noite.
Yes, it’s going to get cold and it might rain tonight.
✕Common Mistakes
Sim, será esfriar.
‘Será’ is the future of ‘ser/estar’; you cannot combine it with an infinitive. Use ‘vai’ + infinitive or the simple future ‘esfriará’.
Sim, vai ficar frio.
While not wrong, ‘ficar frio’ is a slightly different construction that focuses on the state rather than the action of cooling.
Sim, está esfriar.
Mixing present ‘está’ with an infinitive is ungrammatical. Use ‘está esfriando’ for a progressive sense.
↔Alternatives
Sim, vai ficar frio.
Yes, it will be cold.
Claro, vai esfriar.
Sure, it’s going to get cold.
Com certeza, vai esfriar.
Definitely, it’s going to get cold.
Cultural Tip
In Brazil, people often talk about the weather as a small‑talk starter. Using the periphrastic future (vai + infinitive) sounds natural and informal. In the South, where temperatures can drop sharply, you’ll hear “vai esfriar” more often than in tropical regions.