Average annual temperature is 27.9 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: 22.2 °C
Number of sunny days: 96 days
Number of rainy days: 269 days
Look at detailed online map of Piauí
* Weather data for Piauí 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 | 30.3 | 31.1 | 30.8 | 30.9 | 30.7 | 32.1 | 33.1 | 34.2 | 34.5 | 35.2 | 33.0 |
| Average daytime temperature (°C) | 28.4 | 28.7 | 29.0 | 29.2 | 29.3 | 29.5 | 30.4 | 32.2 | 33.0 | 33.5 | 32.9 | 31.4 |
| Average temperature (°C) | 25.9 | 26.1 | 26.3 | 26.8 | 27.0 | 27.3 | 27.9 | 29.3 | 29.8 | 30.3 | 29.7 | 28.7 |
| Average night temperature (°C) | 23.6 | 23.9 | 24.0 | 24.5 | 24.6 | 25.1 | 25.6 | 26.6 | 26.9 | 27.4 | 27.1 | 26.5 |
| Absolute minimum temperature (°C) | 22.4 | 22.2 | 22.7 | 22.8 | 23.4 | 23.2 | 23.9 | 24.3 | 23.5 | 24.1 | 23.3 | 24.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.2 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.7 | 8.8 | 8.9 | 8.9 | 9.5 | 10.7 | 10.6 | 11.2 | 11.0 | 10.9 | 10.5 | 10.1 |
| Precipitation (mm) | 413 | 396 | 405 | 196 | 336 | 125 | 51 | 10 | 32 | 19 | 72 | 97 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 1 | 8 | 18 | 22 | 22 | 18 | 6 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 29 | 23 | 13 | 8 | 9 | 12 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Piauí is at