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Conditions at Rottnest Island in June
June: Winter Arrives with Size and Power
June marks the top end of the surf season at Rottnest. Average swell height ramps up to 8ft (2.5m) and the period extends to 12.8s, with the distribution favoring SW (27.2%), WSW (16.0%), and a broader spread of W, WNW and NW energy that indicates more westward-tracking Southern Ocean lows. The wind regime becomes far more favorable for the south-facing breaks: NNE and NE winds are prominent at 7.5% and 8.4%, NNW has a strong 7.7%, and the onshore S/SSW winds shrink to only 8.6% combined. Ideal conditions reach 16% - tied for the annual high. While there can be stormy W/SW gales at times, the windows of offshore NE/NW flow deliver heavy, pumping, long-period surf. Air temperatures drop to 16.8°C, rainfall peaks at 4.44 mm/day, and water temperature cools to 21.0°C. Bring the bigger board and the rubber; Rottnest is firing.
Average Spot conditions at Rottnest Island in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Rottnest Island during June. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Rottnest Island for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rottnest Island for June. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Rottnest Island.