Rottnest Island in May
Good time to visit
Quiet and affordable with unpredictable weather. The island feels peaceful but swimming becomes less appealing for most visitors.
Weather
May ushers in proper autumn with cooler days around 20°C and the start of Perth's wet season. Rain becomes more regular - expect a few proper downpours mixed with clear, crisp days. Ocean temperatures start dropping.
20°C high12°C low8 rain days
Crowds & Cost
low crowds
~$110/day average
May Tips
- •Bring waterproof jacket and layers
- •Many accommodation options offer off-season discounts
- •Check ferry schedules - rough seas can cause cancellations
All Months
October through April delivers Rottnest's best weather. Water temperatures peak at 24°C in February, air temperatures hover around 26°C, and the quokkas stay active throughout the day.
December and January bring the biggest crowds – and the highest prices. Accommodation doubles in cost, ferries book out weeks ahead, and every beach fills by noon. The upside? Longest days and warmest water.
March and April offer the sweet spot. Still warm enough for swimming, but school's back in session. Hotel rates drop by 30%, and you can actually find a quiet spot at The Basin.
Winter (June to August) sees water temperatures drop to 18°C, but the island takes on a different character. Fewer tourists, dramatic storms, and the southern right whales migrate past the coast. Pack layers – morning temperatures can hit 12°C before warming to 20°C by afternoon.
Rottnest Island Scores
Solo
6/10
Couples
7/10
Families
9/10
Adventure
5/10
Budget
5/10
Luxury
4/10
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