Climate almanac

Riachão

Maranhão, Brazil · -7.36°, -46.62°

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What is the climate like in Riachão?

The best time to visit Riachão is typically May – September, with trip comfort peaking in July (9.3/10). Riachão is warmest in September, when daily highs average 96°F (36°C), and coolest in July, when lows fall to about 69°F (21°C). The wettest month is typically January and the driest is July; the year sees roughly 54 in (1381 mm) of precipitation.

  • Best time to visitMay – September — comfort peaks in July (9.3/10)
  • Warmest monthSeptember — average high 96°F (36°C)
  • Coolest monthJuly — average low 69°F (21°C)
  • Wettest monthJanuary (11 in (278 mm))
  • Driest monthJuly (0.1 in (2 mm))
  • Annual precipitation54 in (1381 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromCarolina, 94 km away (1974-1994)