Climate almanac
Riachão
Maranhão, Brazil · -7.36°, -46.62°
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)