8· 1 review
Acaiá Cave & Ilha Grande Lagoons Boat Tour
If you're in Ilha Grande, don't miss the opportunity to take a tour around the Acaiá Cave and its main lagoons. You'll fall in love with its landscapes!
7 h
from US$ 46
Short answer
In July, Ilha Grande averages highs of 26 °C (79 °F) and lows of 18 °C (64 °F), with about 41 mm of rain spread over roughly 6 days. July is a dry month, good for outdoor plans. Crowds tend to be high this month.
Climate · INMET (updated 2026)
Temperature
26 / 18 °C
high / low
Rain
41 mm
6 days
Daylight
10h50
sunset at 17:27
Crowds
High
season
What to expect in Ilha Grande in July
Editor's tip
July is the heart of winter in Ilha Grande. In Brazil the seasons are the reverse of those in the Northern Hemisphere. Temperatures are pleasant, with highs of 26 °C (79 °F) and nights that still call for a light jacket. 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 also rains very little: this is one of the driest months of the year, good for anyone who wants an outdoor itinerary. If the dates line up, it is worth fitting Feast of Saint Anne (Festa de Santana) or Ilha Grande Music and Ecology Festival (Festival de Música e Ecologia da Ilha Grande) into your itinerary: it is what livens up the destination at that time of year.
Myllena Vieira · Editor at VisiteCrowds
Crowd level: high
July is high season: the destination fills up, the most popular attractions have lines, and it pays to book ahead.
Prices
Rates: high
High season: higher rates and heavy demand. Book ahead.
Tours and tickets
Things to do in Ilha Grande in July
Where to stay
Hotels in Ilha Grande
July is high season in Ilha Grande: 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 July
Feast of Saint Anne (Festa de Santana)
A centuries-old festival for the patron saint in the Freguesia de Santana, with a dawn greeting, Mass, a procession by sea and forró (northeastern dance music) on the beach.
Ilha Grande Music and Ecology Festival (Festival de Música e Ecologia da Ilha Grande)
A free festival in Vila do Abraão that combines Brazilian music concerts, a crafts fair and environmental activities.
What to pack in July
Light jacket for the evening · nights of 18 °C (64 °F) Light clothing for the day · highs of 26 °C (79 °F) Sunscreen and sunglasses · strong sun on the tours Comfortable walking shoes · you will be on foot much of the day
Looking for better weather?
Where the weather is good in July
These destinations have the best weather comfort for July, scored with the same calculation of rain, heat and humidity. Tap to see what the month is like in each one.
Torn between Ilha Grande and another destination?
See Ilha Grande next to the destinations that usually compete for the same trip: month-by-month weather, driving cost, ideal length of stay and travel style, side by side.
see all comparisons →