Average annual temperature is 28.5 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 21.4 °C
Number of sunny days: 199 days
Number of rainy days: 166 days
Look at detailed online map of Ilha Grande
* Weather data for Ilha Grande Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.9 | 36.6 | 35.8 | 33.0 | 33.3 | 33.7 | 35.4 | 36.2 | 37.5 | 38.4 | 38.9 | 38.5 |
| Average daytime temperature (°C) | 34.4 | 34.5 | 32.1 | 31.6 | 32.3 | 32.0 | 33.5 | 34.6 | 35.9 | 37.1 | 36.9 | 36.3 |
| Average temperature (°C) | 28.5 | 28.6 | 26.9 | 26.6 | 27.5 | 27.3 | 28.1 | 28.9 | 29.7 | 30.1 | 30.1 | 30.0 |
| Average night temperature (°C) | 23.6 | 23.9 | 23.0 | 22.9 | 23.3 | 23.0 | 23.1 | 23.7 | 24.2 | 24.6 | 25.0 | 25.1 |
| Absolute minimum temperature (°C) | 21.7 | 22.2 | 21.9 | 21.4 | 21.8 | 21.4 | 21.8 | 22.2 | 22.5 | 23.4 | 24.1 | 23.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 10.6 | 10.6 | 9.7 | 10.7 | 10.6 | 10.3 | 10.7 | 10.9 | 10.9 | 11.3 | 11.2 | 10.5 |
| Precipitation (mm) | 118 | 104 | 209 | 112 | 26 | 27 | 2 | 5 | 0 | 0 | 4 | 24 |
| Sunny days | 10 | 8 | 6 | 4 | 6 | 12 | 26 | 26 | 27 | 31 | 24 | 19 |
| Rainy days | 21 | 20 | 25 | 26 | 25 | 18 | 5 | 5 | 3 | 0 | 6 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ilha Grande is at