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Climate almanac

Castroville

California, United States · 36.77°, -121.76°

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What is the weather like in Castroville in December?

In December, Castroville is typically 60°F (15°C) during the day and 46°F (8°C) at night. The month brings about 3.4 in (85 mm) of precipitation in total.

  • Average high60°F (15°C)
  • Average low46°F (8°C)
  • Precipitation3.4 in (85 mm)
  • Clear or mostly clear days11
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)