Skip to main content

Weather

Frequently asked questions

Rottnest Island has a mild climate with warm, dry summers and cool winters. Summer temperatures average around 26°C, while winter averages about 18°C. Rainfall is mostly in winter, and sea breezes keep conditions pleasant year-round. Expect plenty of sunshine and inviting weather across all seasons.

Rottnest Island is great to visit at any time of the year. While summer (December – February) is the most popular time to explore the beautiful beaches, you can still enjoy warmer weather for water-based activities between September and April. The winter months (June – August) are a great time for a range of land-based experiences from hiking to wildlife encounters.

Learn more about how the incredible flora and fauna change throughout the year with our guide to the Noongar seasons on Wadjemup / Rottnest Island.

Yes, you can swim at Rottnest Island year-round. Summer brings the warmest weather and ideal conditions, while autumn and spring remain pleasantly warm. Winter is cooler, but swimming is still possible with many visitors opting for a wetsuit during this time. Thanks to the Leeuwin Current flowing from Indonesia, water temperatures are about 4°C warmer than the WA coast.