Climate almanac
Castaic
California, United States · 34.49°, -118.62°
What is the weather like in Castaic in October?
In October, Castaic is typically 79°F (26°C) during the day and 55°F (13°C) at night. The month brings about 0.5 in (13 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low55°F (13°C)
- Precipitation0.5 in (13 mm)
- Clear or mostly clear days24
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)