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Climate almanac

Ilmajoki

South Ostrobothnia, Finland · 62.73°, 22.57°

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What is the weather like in Ilmajoki in September?

In September, Ilmajoki is typically 58°F (15°C) during the day and 44°F (6°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total.

  • Average high58°F (15°C)
  • Average low44°F (6°C)
  • Precipitation2.6 in (66 mm)
  • Clear or mostly clear days3
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)