Sao Paulo Weather in December

December: warm and rainy

December feels hot, sticky and often cloudy. The high reaches 28°C, while rain falls on 21 days, so sudden downpours can interrupt a day out. January is even wetter; May to August are better for drier sightseeing.

Museums like MASP and the Pinacoteca work well when showers arrive. For outdoor plans, keep Ibirapuera Park or a walk along Avenida Paulista flexible, and avoid relying on a long stretch of dry weather. Evenings are mild, but wet pavements and traffic can make getting across town slow.

Christmas and New Year

You'll see Christmas lights around Avenida Paulista, and the avenue hosts a large New Year's Eve celebration. The holiday period brings school breaks, and many locals leave the city, so some neighbourhoods feel quieter while popular sights and events draw crowds.

Families with children may enjoy the lights, but the rainy afternoons can make a packed outdoor day tiring. December is summer high season for holiday travel, so flights and hotels can cost more around Christmas and New Year than in quieter months.

Getting around in the rain

A practical move for Paulista's Christmas lights is to take the metro to Trianon-Masp rather than cross town by car. Heavy rain can slow São Paulo traffic, and the station puts you close to the avenue. Check the event arrangements before setting out, as New Year's Eve brings road closures and large crowds.