Surf forecastStatisticsHistorical report

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.

Loading chart...

Conditions at Periscopes in April

April: Easterlies Take Over

April is a turning point as the southeast trades strengthen, delivering offshore winds a full 80% of the time. Swell is dominated by SSW (72%) and SW (22%), with an average period of 13.9 seconds. Wave heights are solid at 1.3m on average, but the SSW direction pushes significant 1.5-2m sets. The wind blows consistently from ESE, SE, and E, keeping the surface glassy and the waves well-groomed. This is when Periscopes starts to shine, offering rippable walls with long, fun rides. The combination of favorable swell direction and near-perfect wind creates ideal conditions for all levels.

Average Spot conditions at Periscopes in April

Swell history for April

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for April

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Periscopes during April. 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 April.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Periscopes for April. 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.

Swell with good wind

Swell with good wind by size