Climate almanac
Lagoa de São Francisco
Piauí, Brazil · -4.39°, -41.60°
What is the climate like in Lagoa de São Francisco?
The best time to visit Lagoa de São Francisco is typically May – November, with trip comfort peaking in August (9.2/10). Lagoa de São Francisco is warmest in October, when daily highs average 97°F (36°C), and coolest in July, when lows fall to about 72°F (22°C). The wettest month is typically March and the driest is September; the year sees roughly 42 in (1073 mm) of precipitation.
- Best time to visitMay – November — comfort peaks in August (9.2/10)
- Warmest monthOctober — average high 97°F (36°C)
- Coolest monthJuly — average low 72°F (22°C)
- Wettest monthMarch (13 in (339 mm))
- Driest monthSeptember (0.0 in (1 mm))
- Annual precipitation42 in (1073 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)