Climate almanac

São João da Fronteira

Piauí, Brazil · -3.96°, -41.26°

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What is the climate like in São João da Fronteira?

The best time to visit São João da Fronteira is typically June – November, with trip comfort peaking in August (9.2/10). São João da Fronteira is warmest in October, when daily highs average 95°F (35°C), and coolest in July, when lows fall to about 71°F (22°C). The wettest month is typically March and the driest is September; the year sees roughly 52 in (1327 mm) of precipitation.

  • Best time to visitJune – November — comfort peaks in August (9.2/10)
  • Warmest monthOctober — average high 95°F (35°C)
  • Coolest monthJuly — average low 71°F (22°C)
  • Wettest monthMarch (16 in (419 mm))
  • Driest monthSeptember (0.0 in (1 mm))
  • Annual precipitation52 in (1327 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)