When To Go · Country Guide
Reefs, wrecks, oceanic islands, and crystal rivers across Brazil's Atlantic playground
Updated Mar 4, 2026 • 7 sources
When to go
Brazil spans equatorial to subtropical latitudes, so the best season depends on the coast you choose.
Best overall window
Drier weather for many Northeast and island plans, water 26°C to 29°C, better visibility offshore
Outside that window
Rainier in parts of the Northeast and bumpier seas on the Southeast and South when winds hit 25 km/h to 40 km/h
Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.
The overall row stays visible so you can compare it against the currently selected scope.
| Scope | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | Overall - Jan: Good | Overall - Feb: Good | Overall - Mar: Good | Overall - Apr: Tradeoffs | Overall - May: Tradeoffs | Overall - Jun: Tradeoffs | Overall - Jul: Tradeoffs | Overall - Aug: Best | Overall - Sep: Best | Overall - Oct: Best | Overall - Nov: Best | Overall - Dec: Good |
These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.
Humpback whales in Abrolhos region
Best for Scuba, Topside
Jul to Nov
The Abrolhos Bank is Brazil's most famous humpback season.
Spinner dolphins in Fernando de Noronha
Best for Snorkel, Freedive, Scuba, Topside
Year-round
Noronha is known for daily dolphin presence in certain bays.
Sea turtle nesting season
Best for Topside, Snorkel
Sep to Mar
Across many Brazilian beaches, sea turtle nesting season typically starts in September and runs through the austral summer.
Bonito dry-season clarity peak
Best for Snorkel, Freedive, Topside
May to Sep
Inland Bonito Brazil is often at its clearest in the dry season, making river floats and sinkhole swims feel especially transparent.
Carnival and peak summer crowds
Best for Topside
Feb to Mar
Brazil's biggest festivals drive higher flight prices and crowded beach towns.
Southern right whales off Santa Catarina
Best for Topside
Jul to Nov
On the South coast, winter and spring can bring southern right whales closer to shore.
Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.