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The Island • Statistics for April

Conditions at The Island in April

April: The Winter Engine Turns Over

April is where The Island shifts from summer mode to full-blown groundswell mode. Average height holds at 6ft (1.8m) but period lengthens to 10.7s, and the Southern Ocean storm track starts to feed long-period S and SSE swell at the coast. S swell now accounts for 18.2% of all observations and SSE for 17.2%, giving the beach an optimal-direction total of 51.8% - a huge jump from the summer months. The S column is stacked: 7.3% of all waves sit in the 1.5-2m (5-6.6ft) range and another 5.1% in the 2-2.5m (6.6-8.2ft) zone. Wind is ideal 47% of the time, led by NNW (13.3%) and NW (9.9%), though SSW (10.8%) and SW (7.9%) remind you that winter fronts bring wind as well as swell. Water temps drop to 18.5°C, air averages 15.0°C, and rainfall nudges up to 3.14mm/day. The smooth, pulsing S/SSE groundswell with NNW offshore is as good as it gets.

Average Spot conditions at The Island in April

Swell history for April

0 - 2
2 - 3
3 - 5
5 - 6
6 - 8
> 8 ft

Wind history for April

0 - 6.2
6.3 - 12.4
12.4 - 18.6
18.6 - 24.9
24.9 - 31.1
> 31.1 mph

Swell quality

Analyze the groundswell consistency at The Island 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 The Island for your next trip in April.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at The Island 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 The Island.

Swell with good wind

Swell with good wind by size

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