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Ral Island • Statistics for April

Conditions at Ral Island in April

April: Smaller, Cleaner Transition

April marks the transition away from the monsoon's big north swells. Average wave height drops to 3.3ft (1.0m) and period to 9.6 seconds. NE swell becomes dominant at 51.2 percent, while NNE contributes 30.6 percent. The favorable N, NNE, NW and NNW window shrinks to 43.7 percent of the total. Most of the surf falls in the 2 to 3ft (0.5 to 1m) and 3 to 5ft (1 to 1.5m) ranges, with only small pockets of 5ft-plus energy. It is still rideable and fun but lacks the heavy punch of the previous three months.

The trade-off is wind. Ideal conditions jump to 39 percent, with a much stronger easterly and south-easterly flow developing. For Ral Island's north-facing reefs, those directions create clean, groomed faces even though the swell is less powerful. Air temperatures stay around 28.2°C with 7.01mm per day of rain and water temperature at 29.8°C. April is the first month where you can trade raw size for consistent, workable conditions.

Average Spot conditions at Ral 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 Ral 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 Ral Island for your next trip in April.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Ral 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 Ral Island.

Swell with good wind

Swell with good wind by size

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