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Climate almanac

Placentia

California, United States · 33.87°, -117.87°

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What is the weather like in Placentia in September?

In September, Placentia is typically 82°F (28°C) during the day and 65°F (18°C) at night. The month brings about 0.3 in (8 mm) of precipitation in total.

  • Average high82°F (28°C)
  • Average low65°F (18°C)
  • Precipitation0.3 in (8 mm)
  • Clear or mostly clear days22
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)