How long till bluegill eggs hatch?

The time it takes for bluegill eggs to hatch depends on the water temperature. At a water temperature of 70 degrees Fahrenheit (21 degrees Celsius), the eggs will hatch in about 3 days. At a water temperature of 80 degrees Fahrenheit (27 degrees Celsius), the eggs will hatch in about 2 days. At a water temperature below 68 degrees Fahrenheit (20 degrees Celsius), the eggs will not hatch.