Like many beaches on Oahu's North Shore, Sunset Beach is considered dangerous for inexperienced surfers, due to extensive coral formations near the surface that present the risk of serious injury. Conditions for swimming change depending on the particular location and season. Generally speaking, the water is flat as a lake in the summers and has waves in the winters. All the surfing contests take place in the winter around December and January, that being the time of the biggest and best waves for surfing. Swimming conditions change from spot to spot along the beach. There is usually a place to swim somewhere, except during stormy weather.