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Conditions at Johanna in June
June: Southern Ocean Engine at Full Throttle
Winter is officially here and the Southern Ocean shows no mercy. Average swell height jumps to 2.7m (9ft), period stays at a powerful 12.9s, and the swell spectrum becomes even more westerly - WSW 17.2%, SW 18.4%, W 6.9%, with some SSW at 5.7%. This is a broad, long-fetch combination that stacks up well at Johanna, producing solid, heaving, occasionally threatening surf. The 1.5-2.5m (5-8ft) range is filled with meaty waves, and there is a healthy dose of 8ft+ action.
Ideal winds remain high at 33% because the N-NNE quadrant is active, taking up about 19% of the wind rose. The onshore S/SW component is less dominant than mid-winter, and strong NNW/NW flow around low pressure systems can leave things workable on the big days. Air temps drop to an average of 13.3°C, water temp falls to 15.0°C, and rainfall increases to 3.44 mm/day. You will need a sturdy wetsuit and a good board - this is serious, powerful surf.
Average Spot conditions at Johanna in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Johanna 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 Johanna for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Johanna 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 Johanna.