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Ilha Grande Weather in July
Ilha Grande in July sees high temperatures, with highs around 24°C (75°F) and overnight lows of 19°C (66°F). Rainfall is fairly high at around 72 mm (2.8 in) on average, so pack waterproofs just in case.
Rainfall in Ilha Grande in July
You can expect rain on around 9 days based on historical patterns, with 72 mm (2.8 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Ilha Grande in July
July is a good time to be in Ilha Grande. Days are excellent, reaching 24°C (75°F), with nights around 19°C (66°F). This kind of day-to-night contrast is typical for this time of year. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. Typically, this month offers some of the year's mildest temperatures. However, it's still unmistakably warm.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July and August typically offer the best weather for Ilha Grande.
Ilha Grande Temperature in July
Min Temperature
19°C (66°F)
Max Temperature
24°C (75°F)
Chance of Rain
29%
Precipitation
72 mm (2.8 in)
Rainy days
9 days
Ilha Grande Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ilha Grande - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Ilha Grande typically stay consistent throughout July, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows around 17°C (63°F).
Average temperatures in July
Historical weather records for Ilha Grande in July
Browse day-by-day weather records for Ilha Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ilha Grande historical weather extremes in July
Based on 23 years of weather observations (2003-2026), these are the most extreme conditions recorded in Ilha Grande.
- On July 25, 2025, temperatures climbed to 36°C (97°F), marking the warmest July day on record.
- The coldest July day was on July 5, 2003, with a maximum of 11°C (52°F).
- The lowest overnight temperature recorded in July was 10°C (50°F) (July 31, 2021).
Best Places in Brazil in July
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in July →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ilha Grande in July
Comfortable temperatures call for an easy wardrobe in July. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days.
What To Do in Ilha Grande in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Ilha Grande 3-Day Forecast
More climate data for Ilha Grande
See the full Ilha Grande climate overview or explore weather in Brazil.
Popular in July
Where to go in July - average daytime high across popular destinations.
Fortaleza
31°C (88°F) Salvador
26°C (79°F) Rio de Janeiro
26°C (79°F) Búzios
25°C (77°F) Sao Paulo23°C (73°F) Paraty23°C (73°F) Florianópolis21°C (70°F) Gramado
19°C (66°F) Bucket list
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