Castelo do Piauí Climate: Weather by Month and Best Time to Visit
Best months for Castelo do Piauí: June, July, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 33°C | 24°C | 156 mm | 17 | – | – | 5.3 |
| February | 32°C | 23°C | 180 mm | 17 | – | – | 5.3 |
| March | 32°C | 23°C | 257 mm | 22 | – | – | 5.3 |
| April | 32°C | 23°C | 184 mm | 18 | – | – | 5.4 |
| May | 32°C | 23°C | 76 mm | 9 | – | – | 6.9 |
| June | 33°C | 23°C | 12 mm | 2 | – | – | 7.7 |
| July | 34°C | 23°C | 6 mm | 1 | – | – | 7.6 |
| August | 35°C | 23°C | 1 mm | 0 | – | – | 7.4 |
| September | 36°C | 24°C | 1 mm | 0 | – | – | 7.0 |
| October | 37°C | 25°C | 14 mm | 1 | – | – | 6.8 |
| November | 37°C | 25°C | 14 mm | 3 | – | – | 6.6 |
| December | 36°C | 25°C | 41 mm | 7 | – | – | 6.3 |