Average annual temperature is 25.8 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: 15.4 °C
Number of sunny days: 151 days
Number of rainy days: 214 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) | 34.2 | 35.9 | 36.8 | 35.5 | 32.1 | 29.6 | 31.7 | 35.9 | 36.6 | 38.7 | 37.3 | 39.4 |
| Average daytime temperature (°C) | 32.1 | 34.0 | 32.0 | 32.4 | 29.6 | 27.6 | 28.6 | 30.4 | 32.2 | 34.8 | 35.3 | 35.1 |
| Average temperature (°C) | 26.4 | 27.3 | 26.0 | 26.3 | 24.6 | 23.0 | 23.0 | 24.1 | 25.4 | 27.2 | 28.4 | 28.1 |
| Average night temperature (°C) | 20.7 | 21.2 | 20.9 | 21.0 | 20.9 | 19.7 | 18.3 | 18.8 | 19.4 | 19.7 | 21.4 | 21.5 |
| Absolute minimum temperature (°C) | 18.9 | 19.0 | 19.0 | 19.7 | 19.0 | 17.8 | 15.4 | 16.8 | 17.8 | 16.4 | 18.0 | 19.3 |
| 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) | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 | 11.6 | 11.8 | 12.0 | 12.3 | 12.6 | 12.7 |
| 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) | 11.2 | 10.6 | 10.3 | 10.5 | 8.9 | 8.3 | 9.3 | 9.6 | 10.2 | 11.1 | 11.6 | 10.7 |
| Precipitation (mm) | 34 | 10 | 93 | 32 | 69 | 42 | 13 | 12 | 4 | 1 | 7 | 35 |
| Sunny days | 11 | 10 | 9 | 11 | 5 | 2 | 8 | 16 | 15 | 25 | 19 | 20 |
| Rainy days | 20 | 18 | 22 | 19 | 26 | 28 | 23 | 15 | 15 | 6 | 11 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grajaú is at