Climate almanac
Portola Hills
California, United States · 33.68°, -117.63°
What is the weather like in Portola Hills in December?
In December, Portola Hills is typically 67°F (19°C) during the day and 48°F (9°C) at night. The month brings about 2.5 in (65 mm) of precipitation in total.
- Average high67°F (19°C)
- Average low48°F (9°C)
- Precipitation2.5 in (65 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)