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Periscopes - surf spot statistics
Periscopes seasonal overview
Best Surf Season (May - September)
The heart of the dry season brings consistent southeast trade winds that blow offshore across the west-facing reefs of Periscopes. Combined with a steady diet of powerful SSW to SW groundswells generated by relentless Southern Ocean storms, this is prime time. Expect average wave heights in the 1.5-1.8m range with long periods averaging 14-15 seconds, delivering clean, rippable walls. With offshore wind conditions exceeding 90% for most of these months, the window for perfect waves is wide open.
Fair Surf Season (April, October, November)
These transitional months see a shift in the wind patterns. April still offers excellent conditions thanks to strengthening easterly trades, while October and November experience a return of more variable winds as the monsoon transitions. Swell quality remains high with solid SSW energy, but the percentage of clean offshore wind drops to 50-80%. You'll need to pick your windows, but when it aligns, the waves can be just as good as the peak season.
Low Surf Season (December - March)
The wet season brings unfavorable westerly winds that blow onshore across Periscopes, drastically reducing the quality. While the swell direction remains favorable from SW, the average wave heights dip slightly to 1.3-1.4m and periods remain long, but the wind blows from the west and northwest over 50% of the time, creating choppy, messy conditions. Ideal offshore winds occur less than 15% of the time in January and February, making surfable waves a rare treat. Only a few windows of cleaner conditions may appear during cold fronts pushing through.
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Conditions at Periscopes in June
June: Peak Power
June is the heart of the dry season, delivering the most consistent swell of the year. Average heights climb to 1.7m with a period of 14.5 seconds, and 32% of the SSW swell hits the 1.5-2m range. Offshore winds blow 94% of the time, dominated by ESE and SE. The waves are powerful and long-period, offering both rippable sections and heavier, pumping barrels on the sets. The wind and swell align nearly perfectly, making Periscopes a world-class wave during this month. Expect firing conditions with plenty of energy to satisfy intermediate to advanced surfers.
Average Spot conditions at Periscopes in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Periscopes 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 Periscopes for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Periscopes 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 Periscopes.