Brazilian Weather Guide
As the largest country in South America, Brazil has a suitably wide climate range from equatorial and semiarid conditions in the north (where the Amazon lies), tropical climes in the centre and temperate weather in the southern areas, not to mention microclimates that vary from region to region. While the south has four seasons, most of Brazil experiences only a wet and dry season annually. Tourist high season runs from December to March, and low season from May to September. Although there’s no wrong time to visit, the pleasant temps and less-crowded conditions from April to November make it easy to get around and enjoy the sights.
Seasons and Clothing
Summer: December to February
This is the most festive time in Brazil with Carnival usually happening around February. An influx of tourists as well as Brazilians from other areas means the main cities are crowded and buzzing. Average summer temps in Rio de Janeiro and the northeast generally get up to the high 30s, while the southern areas can hit at a maximum of 35 degrees Celsius. The Amazon is rarely hotter than 27 degrees Celsius, but the humidity and rainfall is quite high during their wet season. This is the best time to visit the beaches of southern Brazil when the weather is hot but not sticky.
Autumn: March to May
From April onwards is a great time to visit the world’s largest wetlands of the Pantanal in the centre of the country as the area gets flooded during the rainy season (December to March) and is best avoided. The weather is milder, but no less sunny in the northeast making autumn a great time to visit what’s considered to be the country’s most beautiful coastline. Less crowds and pleasant conditions are also ideal for sightseeing in the major cities as well.
Winter: June to August
Due to the drier and less humid conditions, this is the best time to go trekking in the Amazon and the Pantanal. Rio and the northeast still has warm weather with temps in the mid 20s during the winter months, while the conditions are considerably colder in southern Brazil dipping to 5 degrees at night. The 2014 FIFA World Cup Brazil is on from mid-June to mid-July, which will mean huge crowds in all the 12 host cities including Rio de Janeiro, Sao Paulo and Brasilia so make sure you book accommodation and flights well ahead of time if you’re planning on visiting then.
Spring: September to November
The Amazon rainy season begins around mid-October and in December for the central region of Brazil, while October and November is a great time to visit the Pantanal with drier conditions which are ideal for spotting the varied wildlife. The resorts of the northeast experience average temps of between 24 to 27 degrees Celsius all year round so it’s always swimsuit season with the best diving conditions from July until November.