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Climate almanac

Cheonan

Chungcheongnam-do, South Korea · 36.81°, 127.15°

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What is the weather like in Cheonan in September?

In September, Cheonan is typically 80°F (27°C) during the day and 65°F (18°C) at night. The month brings about 6.7 in (171 mm) of precipitation in total.

  • Average high80°F (27°C)
  • Average low65°F (18°C)
  • Precipitation6.7 in (171 mm)
  • Clear or mostly clear days8
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)