Climate almanac

São João da Serra

Piauí, Brazil · -5.51°, -41.90°

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What is the climate like in São João da Serra?

The best time to visit São João da Serra is typically May – November, with trip comfort peaking in July (8.7/10). São João da Serra is warmest in October, when daily highs average 101°F (38°C), and coolest in July, when lows fall to about 75°F (24°C). The wettest month is typically March and the driest is September; the year sees roughly 39 in (995 mm) of precipitation.

  • Best time to visitMay – November — comfort peaks in July (8.7/10)
  • Warmest monthOctober — average high 101°F (38°C)
  • Coolest monthJuly — average low 75°F (24°C)
  • Wettest monthMarch (11 in (276 mm))
  • Driest monthSeptember (0.0 in (1 mm))
  • Annual precipitation39 in (995 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)