The best time to go to Exmouth is during the dry season, which runs from April to October. This period offers consistently pleasant weather, ideal for outdoor activities and marine life encounters.During these months, you'll experience clear skies, minimal rainfall, and comfortable temperatures, typically ranging from 25°C to 30°C (77°F to 86°F). This makes it superb for snorkeling or diving in the Ningaloo Reef, exploring Cape Range National Park, or simply relaxing on the beaches.For visitors primarily interested in swimming with whale sharks, the peak season is from April to July. This is when these gentle giants are most reliably found feeding in the waters just offshore. If seeing the whale sharks is your main goal, planning your trip within this window will maximize your chances.If you're interested in humpback whale watching, plan your visit between August and October. During these months, the humpback whales migrate through the Exmouth Gulf, offering excellent opportunities to observe them.