Average annual temperature is 27.8 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: 19.1 °C
Number of sunny days: 218 days
Number of rainy days: 147 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) | 32.9 | 34.2 | 35.7 | 33.2 | 32.1 | 33.1 | 34.7 | 37.3 | 39.7 | 39.2 | 39.2 | 39.1 |
| Average daytime temperature (°C) | 31.0 | 31.6 | 30.9 | 31.1 | 30.6 | 31.2 | 32.1 | 33.7 | 35.5 | 37.2 | 36.2 | 35.9 |
| Average temperature (°C) | 26.3 | 26.6 | 26.3 | 26.0 | 26.0 | 26.1 | 26.6 | 28.0 | 29.3 | 31.1 | 30.7 | 30.9 |
| Average night temperature (°C) | 22.2 | 22.4 | 22.4 | 21.9 | 22.2 | 21.6 | 21.2 | 22.2 | 23.1 | 25.0 | 25.5 | 26.0 |
| Absolute minimum temperature (°C) | 20.3 | 20.8 | 20.7 | 19.4 | 21.1 | 19.6 | 19.1 | 20.2 | 21.2 | 22.9 | 23.0 | 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 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.4 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 |
| 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) | 10.8 | 10.8 | 9.9 | 10.4 | 9.9 | 9.9 | 10.5 | 11.0 | 11.2 | 11.2 | 10.9 | 10.7 |
| Precipitation (mm) | 82 | 59 | 119 | 39 | 26 | 1 | 0 | 0 | 0 | 0 | 37 | 30 |
| Sunny days | 3 | 4 | 4 | 7 | 15 | 24 | 29 | 30 | 30 | 31 | 20 | 21 |
| Rainy days | 28 | 24 | 27 | 23 | 16 | 6 | 2 | 1 | 0 | 0 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grajaú is at