Climate almanac

São Luís

Maranhão, Brazil · -2.53°, -44.30°

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What is the climate like in São Luís?

The best time to visit São Luís is typically July – November, with trip comfort peaking in September (8.2/10). São Luís is warmest in August, when daily highs average 85°F (29°C), and coolest in March, when lows fall to about 78°F (25°C). The wettest month is typically March and the driest is September; the year sees roughly 90 in (2279 mm) of precipitation.

  • Best time to visitJuly – November — comfort peaks in September (8.2/10)
  • Warmest monthAugust — average high 85°F (29°C)
  • Coolest monthMarch — average low 78°F (25°C)
  • Wettest monthMarch (19 in (473 mm))
  • Driest monthSeptember (0.7 in (17 mm))
  • Annual precipitation90 in (2279 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromSao Luiz, 0 km away (1974-1993)