Average annual temperature is 27.1 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 19.6 °C
Number of sunny days: 122 days
Number of rainy days: 243 days
Look at detailed online map of Grajaú
* Weather data for Grajaú 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) | 30.4 | 31.3 | 30.9 | 31.5 | 32.4 | 34.0 | 36.0 | 36.2 | 38.0 | 37.8 | 35.6 | 36.2 |
| Average daytime temperature (°C) | 29.1 | 29.5 | 29.0 | 29.9 | 30.5 | 32.6 | 33.8 | 35.0 | 36.4 | 35.9 | 33.7 | 33.0 |
| Average temperature (°C) | 24.7 | 25.2 | 24.8 | 25.4 | 26.0 | 27.0 | 27.6 | 28.8 | 30.1 | 29.8 | 28.4 | 27.8 |
| Average night temperature (°C) | 21.4 | 21.9 | 22.0 | 22.1 | 22.5 | 22.3 | 22.0 | 23.2 | 24.3 | 24.5 | 23.9 | 23.7 |
| Absolute minimum temperature (°C) | 19.6 | 21.0 | 21.2 | 20.1 | 20.7 | 20.7 | 20.2 | 21.5 | 21.2 | 23.3 | 22.3 | 22.2 |
| 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 | 11.0 | 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 | 12.5 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.5 | 9.3 | 8.2 | 9.5 | 10.1 | 10.9 | 11.0 | 11.0 | 11.1 | 11.1 | 10.8 | 10.1 |
| Precipitation (mm) | 186 | 173 | 373 | 103 | 113 | 0 | 1 | 7 | 12 | 16 | 74 | 99 |
| Sunny days | 0 | 0 | 0 | 3 | 8 | 26 | 23 | 20 | 18 | 13 | 8 | 3 |
| Rainy days | 31 | 28 | 31 | 27 | 23 | 4 | 8 | 11 | 12 | 18 | 22 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grajaú is at