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Conditions at Gunnamatta in June
June: Winter Swell Ramps Up and Winds Get Stormy
June is where the Southern Ocean turns up the volume. Average swell height sits near 5ft (1.5m), with a period of 12.4s, and the westerly component becomes much more prominent. SW is still the leading swell direction at 35.2%, but WSW jumps to 18.2% and W adds 7.7%, while WNW, NW and NNW together account for more than 14% of the total. This is a broader, more west-based winter swell regime. The 6.5-8ft (2-2.5m) class fills in from both SW and WSW, so the coast is definitely holding size.
The problem is wind. Ideal offshore conditions drop to 16%, while NNW becomes the dominant wind at 18.5%, with WNW and NW adding another 19.6%. Strong pressure gradients around winter lows bring plenty of raw, stormy surface conditions. Still, between cold fronts there are rare windows of light E/NE offshore wind that turn the short period? Actually the long-period swell into heavy, powerful beach break waves. Water temperature falls to 13.7°C, air averages 12.3°C, and precipitation is high at 2.46mm/day.
Average Spot conditions at Gunnamatta in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Gunnamatta 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 Gunnamatta for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Gunnamatta 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 Gunnamatta.