Climate almanac
Castaic
California, United States · 34.49°, -118.62°
What is the weather like in Castaic in March?
In March, Castaic is typically 65°F (19°C) during the day and 45°F (7°C) at night. The month brings about 2.8 in (72 mm) of precipitation in total.
- Average high65°F (19°C)
- Average low45°F (7°C)
- Precipitation2.8 in (72 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)