Average annual temperature is 27.5 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 21.0 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Bom Princípio do Piauí
* Weather data for Bom Princípio do 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) | 35.8 | 32.6 | 32.7 | 32.4 | 32.7 | 34.3 | 36.3 | 37.2 | 38.9 | 39.1 | 39.3 | 38.6 |
| Average daytime temperature (°C) | 32.0 | 30.7 | 29.8 | 30.3 | 31.7 | 32.3 | 34.4 | 35.9 | 37.4 | 37.2 | 36.2 | 35.6 |
| Average temperature (°C) | 26.5 | 25.9 | 25.3 | 25.5 | 27.0 | 27.1 | 28.3 | 28.5 | 29.1 | 29.0 | 28.8 | 28.9 |
| Average night temperature (°C) | 23.1 | 23.1 | 22.8 | 22.7 | 23.5 | 22.9 | 23.1 | 23.6 | 24.2 | 24.4 | 24.7 | 24.9 |
| Absolute minimum temperature (°C) | 21.5 | 22.3 | 21.7 | 21.1 | 21.7 | 21.0 | 21.4 | 22.6 | 23.0 | 23.4 | 23.6 | 23.7 |
| 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 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 | 12.0 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 10.1 | 9.0 | 8.1 | 8.4 | 10.4 | 10.4 | 11.1 | 11.3 | 11.3 | 11.1 | 11.0 | 10.6 |
| Precipitation (mm) | 157 | 187 | 338 | 339 | 72 | 38 | 10 | 3 | 5 | 12 | 25 | 65 |
| Sunny days | 2 | 0 | 1 | 2 | 2 | 10 | 21 | 24 | 24 | 12 | 9 | 9 |
| Rainy days | 29 | 28 | 30 | 28 | 29 | 20 | 10 | 7 | 6 | 19 | 21 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bom Princípio do Piauí is at