What is the wet season like in Brazil in 2026?

Brasília and much of the cerrado swing from dusty May–September air into a wet summer that typically rebuilds from about October through March, greening the plateau and raising humidity: Living in Brasília and Humidity. São Paulo and Rio concentrate thunderstorm energy in the warm half of the year, with short violent downpours that test drains and hillsides: Living in São Paulo, Living in Rio de Janeiro, and Flood risk.

The Amazon stays wetter for more of the year, with high-water seasons that shift by latitude rather than matching Brasília’s crisp on/off switch: Rain. Northeast coasts such as Recife keep their own wet windows, including heavy June totals in some years, while the interior sertão can remain drought-prone: Living in Recife. Heat and rain often arrive together: Summer heat.

Expect slower traffic, mould risk in poorly ventilated flats, and cancelled outdoor plans after afternoon cells. Wet months can scrub some dry-season smoke, yet traffic pollution remains: Air quality and Wildfire smoke. Choose climate fit by city, not by a Brazil-wide “rainy season” label: Best climate and Where to live in Brazil.