Average annual temperature is 28.5 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: 20.1 °C
Number of sunny days: 194 days
Number of rainy days: 171 days
Look at detailed online map of São Francisco do Piauí
* Weather data for São Francisco 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) | 33.1 | 33.3 | 33.2 | 32.9 | 33.0 | 33.9 | 36.3 | 38.1 | 40.3 | 40.3 | 37.8 | 37.1 |
| Average daytime temperature (°C) | 30.9 | 31.2 | 30.6 | 31.1 | 31.4 | 32.4 | 34.2 | 35.9 | 37.6 | 38.9 | 35.4 | 34.0 |
| Average temperature (°C) | 26.2 | 26.5 | 26.3 | 26.4 | 27.0 | 27.2 | 28.5 | 30.1 | 31.5 | 32.8 | 29.8 | 29.1 |
| Average night temperature (°C) | 22.4 | 22.6 | 22.9 | 22.5 | 23.2 | 23.0 | 23.5 | 24.5 | 25.8 | 27.4 | 25.3 | 24.9 |
| Absolute minimum temperature (°C) | 20.8 | 20.6 | 21.4 | 20.1 | 21.6 | 21.4 | 21.8 | 22.9 | 24.2 | 25.6 | 23.3 | 22.8 |
| 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 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| 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) | 10.4 | 10.2 | 9.0 | 9.9 | 10.0 | 10.1 | 10.8 | 11.2 | 11.3 | 11.2 | 10.6 | 10.1 |
| Precipitation (mm) | 104 | 109 | 171 | 76 | 38 | 0 | 0 | 0 | 1 | 1 | 41 | 50 |
| Sunny days | 3 | 4 | 0 | 5 | 15 | 28 | 30 | 28 | 28 | 27 | 15 | 11 |
| Rainy days | 28 | 24 | 31 | 25 | 16 | 2 | 1 | 3 | 2 | 4 | 15 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Francisco do Piauí is at