Conditions at Caldera in April
April: The Swell Direction Locks In, The Wind Turns
April marks the transition into the wetter half of the year. The average swell period jumps to 14.0s, which is the start of the 'powerful, long period' range, and the directional focus becomes even cleaner: SSW is 60.8% and S is 28.0%. But the average height is still around 1ft (0.3m), and only about 0.2% of the month reaches 2-3ft (0.5-1m), so it remains a grovel-fest. Onshore wind begins to take over as the northeast trades weaken; S wind is 19.2%, SSW wind is 15.9%, and SSE is 9.1%, while NE drops to 16.1%. Precipitation climbs to 1.31mm/day and water temperature peaks at 29.6°C. The small window of opportunity is early morning before the southerly sea breeze turns the surface to mush.
Average Spot conditions at Caldera in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Caldera 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 Caldera for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Caldera 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 Caldera.