How do you say is the weather in portuguese?

There are a few ways to say "how is the weather" in Portuguese, depending on the context and formality:

Formal:

* Como está o tempo? (This is the most common and formal way)

* Qual o tempo que faz? (This is a bit more formal and literary)

Informal:

* Como está o tempo? (This is also used informally)

* Que tempo está fazendo? (This is more informal and used in Brazil)

* Que tempo é hoje? (This is more casual and used in Brazil)

You can also ask about specific aspects of the weather:

* Está frio/quente? (Is it cold/hot?)

* Está chovendo? (Is it raining?)

* Está sol? (Is it sunny?)

* Está ventando? (Is it windy?)

Examples:

* Como está o tempo hoje? (How is the weather today?)

* Que tempo faz em Lisboa? (What is the weather like in Lisbon?)

* Está frio em São Paulo? (Is it cold in São Paulo?)

Remember that Portuguese is spoken in different countries with slightly different dialects. The phrases listed above are generally understood in most Portuguese-speaking countries, but there might be some regional variations.