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Ilha Grande
Ilha Grande Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Ilha Grande year round climate
- Spring (March to May): Average 28.2–28.5°C, warm and humid climate, with the most rainfall in March; be prepared for rain. Common activities: beach activities, snorkeling, hiking. Recommended clothing: light and breathable clothing, raincoat or light rain gear.
- Summer (June to August): Average 29.3–30.1°C, hot and dry, with very little rainfall. Common activities: swimming, sunbathing, water sports. Recommended clothing: swimwear, light short sleeves, sun hat, sunscreen.
- Autumn (September to November): Average 30.1–30.4°C, hot and dry, with very little rainfall. Common activities: swimming, sunbathing, water sports, exploring the island's interior. Recommended clothing: swimwear, light short sleeves, sun hat, sunscreen.
- Winter (December to February): Average 28.6–30.5°C, warm and humid, with moderate rainfall. Common activities: beach activities, snorkeling, hiking. Recommended clothing: light and breathable clothing, raincoat or light rain gear.
Ilha Grande climatological average
Annual average temperature: approx. 29.5°C / Annual rainfall: approx. 1201 mm / Summer humidity: 70%–80% / Rainiest month: March
Ilha Grande monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
29.1°C
153.6
February
28.6°C
198.9
March
28.2°C
362.6
April
28.3°C
279.5
May
28.5°C
84.5
June
29.3°C
37.1
July
30.1°C
13.8
August
30°C
2.9
September
30.1°C
1.3
October
30.4°C
1.5
November
30.4°C
14.6
December
30.5°C
51.2
Ilha Grande weather for the next seven days
8/15
Saturday
Patchy rain nearby
33°C/24.5°C
8/16
Sunday
Sunny
33.6°C/25.2°C
8/17
Monday
Sunny
33.6°C/24.5°C
8/18
Tuesday
Sunny
33.4°C/24.3°C
8/19
Wednesday
Sunny
33.8°C/22.3°C
8/20
Thursday
Sunny
33.9°C/23.8°C
8/21
Friday
Sunny
33°C/24.2°C
