Average annual temperature is 24.2 °C
Absolute maximum temperature: 42.5 °C
Absolute minimum temperature: 12.3 °C
Number of sunny days: 145 days
Number of rainy days: 220 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) | 33.1 | 35.8 | 35.7 | 31.0 | 29.9 | 30.4 | 35.6 | 37.8 | 39.5 | 36.4 | 42.5 | 38.9 |
| Average daytime temperature (°C) | 29.5 | 31.2 | 30.6 | 27.4 | 25.6 | 26.0 | 26.2 | 27.5 | 30.4 | 29.0 | 31.4 | 31.4 |
| Average temperature (°C) | 25.7 | 26.8 | 26.4 | 23.8 | 21.9 | 21.2 | 21.0 | 22.2 | 24.4 | 24.4 | 26.4 | 26.7 |
| Average night temperature (°C) | 22.8 | 23.7 | 23.1 | 20.8 | 18.8 | 17.0 | 16.8 | 18.3 | 19.9 | 21.5 | 22.4 | 23.0 |
| Absolute minimum temperature (°C) | 19.9 | 21.4 | 21.9 | 17.1 | 15.8 | 14.7 | 12.3 | 14.5 | 16.4 | 19.1 | 16.3 | 20.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.6 | 11.0 | 10.8 | 10.9 | 11.3 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 9.4 | 10.3 | 10.6 | 8.8 | 9.0 | 9.4 | 8.6 | 7.9 | 9.7 | 8.2 | 9.9 | 10.8 |
| Precipitation (mm) | 225 | 203 | 83 | 81 | 57 | 21 | 50 | 104 | 35 | 67 | 78 | 102 |
| Sunny days | 4 | 5 | 11 | 5 | 15 | 20 | 18 | 18 | 19 | 7 | 14 | 9 |
| Rainy days | 27 | 23 | 20 | 25 | 16 | 10 | 13 | 13 | 11 | 24 | 16 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grajaú is at