How long does brown trout eggs take to hatch?

Brown trout eggs typically take about 3 to 4 months to hatch, depending on water temperature and environmental conditions. Warmer temperatures can accelerate the hatching process, while cooler temperatures may prolong it. Generally, hatching occurs in late winter to early spring. Once the eggs hatch, the young fish, known as fry, emerge and begin their life in the aquatic environment.