Climate almanac
Seaside
Oregon, United States · 45.99°, -123.92°
What is the weather like in Seaside in December?
In December, Seaside is typically 49°F (10°C) during the day and 44°F (7°C) at night. The month brings about 11 in (290 mm) of precipitation in total. Snowfall averages about 0.8 in (19 mm) over the month.
- Average high49°F (10°C)
- Average low44°F (7°C)
- Precipitation11 in (290 mm)
- Clear or mostly clear days3
- Snowfall0.8 in (19 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)