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Conditions at Kohala Lighthouse in April
April: The Transition Begins
April is where the winter identity starts to dissolve. The average swell height holds at 1.8m (6ft), but the average period falls to 10.2s, signalling a shift from long-period groundswell to shorter-period, more locally generated trade wind sea. The direction rose is dominated by ENE (40.5%) and E (36.4%), with a combined 76.9% of all swell coming from the east-northeast/east quadrant. Only about 15% arrives from the preferred N/NNE/NE/NW/NNW angles, and most of that is confined to the NE direction (11.7%). Waves in the 1.5-2m (5-6.5ft) range are actually abundant - the ENE bucket alone logs 20.5% there - but the angle is wrong and the period is shortening. Trades are in full control: ENE/E winds total 85.8%, and ideal wind days crash to 4%. Water temp holds at 24.5°C and air rises to 20.1°C. For the north-facing reef, April is mostly a morning-glass-off or strong-sided NE swell play.
Average Spot conditions at Kohala Lighthouse in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Kohala Lighthouse 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 Kohala Lighthouse for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kohala Lighthouse 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 Kohala Lighthouse.