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Ilha Grande Weather and Climate: A Comprehensive Guide

Ilha Grande has a steady warm climate throughout the year. It also experiences much rainfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The temperature in Ilha Grande remains steady throughout the year, providing a consistently comfortable climate. Average daytime temperatures reach a comfortable 29°C in February. In July, the coolest month of the year, temperatures drop to a comfortable 24°C.

At night, you can expect cooler temperatures, with averages dropping to around 19°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Ilha Grande has a relatively rainy climate with high precipitation levels, averaging 1591 mm of rainfall annually. Ilha Grande can be quite wet during January, receiving approximately 226 mm of precipitation over 20 rainy days.

In contrast August, experiences much drier conditions, with 60 mm of rainfall, spread across 9 rainy days. For more details, please visit our Ilha Grande Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Ilha Grande

Sat   Dec 21
28°C | 23°C
N 4 m/s
0.7 mm
broken clouds and rain

broken clouds and rain

Sun   Dec 22
27°C | 22°C
SW 3 m/s
3.6 mm
broken clouds and thunder

broken clouds and thunder

Mon   Dec 23
27°C | 23°C
S 5 m/s
3.4 mm
broken clouds and rain

broken clouds and rain

The best time of year to visit Ilha Grande in Brazil

During the months of May, June, July, August, September, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Ilha Grande?
    Most rainfall (rainy season) is seen in January, February, March, November and December.
  • Which is the warmest month in Ilha Grande?
    February has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Ilha Grande?
    The coldest month is July with an average maximum temperature of 24°C.
  • Which is the wettest month in Ilha Grande?
    January tops the wettest month list with 226 mm of rainfall.
  • Which is the driest month in Ilha Grande?
    August is the driest month with 60 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.