Climate almanac

Dumai

Riau, Indonesia · 1.67°, 101.44°

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What is the climate like in Dumai?

The best time to visit Dumai is typically February, the year's most comfortable month (5.4/10). Dumai is warmest in May, when daily highs average 91°F (33°C), and coolest in September, when lows fall to about 76°F (24°C). The wettest month is typically December and the driest is July; the year sees roughly 116 in (2957 mm) of precipitation.

  • Best time to visitFebruary — the year's comfort peak (5.4/10)
  • Warmest monthMay — average high 91°F (33°C)
  • Coolest monthSeptember — average low 76°F (24°C)
  • Wettest monthDecember (15 in (376 mm))
  • Driest monthJuly (5.8 in (146 mm))
  • Annual precipitation116 in (2957 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)