8· 1 review
São Sebastião Whale Watching
São Sebastião offers one of the best spots in Brazil to see humpback whales, making this crossing a must for anyone visiting the region.
4 h
from US$ 102
Short answer
In January, São Sebastião averages highs of 30 °C (86 °F) and lows of 22 °C (72 °F), with about 313 mm of rain spread over roughly 17 days. January is one of the rainiest months of the year, so bring a rain jacket and keep some indoor activities in mind. Crowds tend to be high this month.
Climate · INMET (updated 2026)
Temperature
30 / 22 °C
high / low
Rain
313 mm
17 days
Daylight
13h25
sunset at 18:53
Crowds
High
1 public holiday
What to expect in São Sebastião in January
Editor's tip
January finds São Sebastião in the middle of summer. In Brazil the seasons are the reverse of those in the Northern Hemisphere. Highs reach 30 °C (86 °F): the heat calls for early starts, sunscreen, and spending the middle of the day in the shade or in the water. It is one of the busiest times of the year: the destination fills up, rates go up and the best hotels sell out early. Book ahead or choose weekdays. It rains fairly often, so keep an indoor plan handy for gray days. If the dates line up, it is worth fitting Feast of the Patron Saint Sebastian (Festa do Padroeiro São Sebastião) into your itinerary: it is what livens up the destination at that time of year.
Myllena Vieira · Editor at VisiteCrowds
Crowd level: high
January is high season: the destination fills up, the most popular attractions have lines, and it pays to book ahead.
Prices
Rates: high · ~R$ 412
High season: higher rates and heavy demand. Book ahead. The average nightly rate for lodging in São Sebastião is around R$ 412 (Brazilian reais), depending on the date.
Tours and tickets
Things to do in São Sebastião in January
Where to stay
Hotels in São Sebastião
January is high season in São Sebastião: the best hotels fill up and rates rise as the date approaches. It is best to lock in your room as soon as the trip is decided.
Rates change with the dates: confirm the price on Booking.com.
What happens in January
Feast of the Patron Saint Sebastian (Festa do Padroeiro São Sebastião)
On January 20, the city celebrates its patron saint with an open-air Mass, a procession and the lowering of the historic 18th-century image.
Public holidays in January: New Year's Day (01/01). Expect more people and higher prices around these dates.
What to pack in January
Light clothing and a cap · highs of 30 °C (86 °F) Rain jacket or umbrella · 17 days of rain in the month Sunscreen and sunglasses · strong sun on the tours Quick-dry clothing · humidity of 82% Comfortable walking shoes · you will be on foot much of the day
Looking for better weather?
Where the weather is good in January
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