The best time to go to Shelly Beach is during the shoulder seasons of autumn (March to May) and spring (September to November).During these months, the weather is pleasantly mild, with fewer crowds than in the peak summer season. You'll find ideal conditions for snorkeling and diving in the marine reserve, as the water temperatures are comfortable without being too hot. The bushwalking trails through the coastal rainforest are also very enjoyable during this time, offering good visibility and comfortable temperatures.For those looking to enjoy the warmest water temperatures and consistent sunshine, the summer months of December to February are also an excellent choice. This is peak season, so expect more people, but the conditions are superb for all beach and water activities.