Catalina Island in March typically experiences a transition from winter to spring. Expect daytime temperatures ranging from the mid-60s to low 70s Fahrenheit (18-22C), with cooler evenings in the 50s Fahrenheit (10-15C). Rainfall is possible but less frequent than in the winter months. Ocean temperatures average in the low to mid-60s Fahrenheit (16-18C).
This period offers pleasant conditions for various outdoor activities, as the crowds are generally smaller than the peak summer season. The milder temperatures provide comfortable opportunities for hiking, exploring the island’s interior, and enjoying water activities like kayaking or paddleboarding. Historically, March has marked the beginning of the island’s revitalization after the winter season, with businesses preparing for the influx of visitors in the warmer months. The blooming flora adds to the island’s scenic beauty during this time.