Climate almanac
São João do Arraial
Piauí, Brazil · -3.81°, -42.45°
What is the climate like in São João do Arraial?
The best time to visit São João do Arraial is typically June – November, with trip comfort peaking in August (8.8/10). São João do Arraial is warmest in October, when daily highs average 98°F (37°C), and coolest in July, when lows fall to about 73°F (23°C). The wettest month is typically March and the driest is September; the year sees roughly 58 in (1483 mm) of precipitation.
- Best time to visitJune – November — comfort peaks in August (8.8/10)
- Warmest monthOctober — average high 98°F (37°C)
- Coolest monthJuly — average low 73°F (23°C)
- Wettest monthMarch (16 in (400 mm))
- Driest monthSeptember (0.1 in (2 mm))
- Annual precipitation58 in (1483 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)