Conditions at Kastro Point in April
April: Smaller Swell, Cleaner Skies
Spring is in full swing and Kastro's surf potential starts to fade. Average swell height drops to 0.5m (1.6ft), period shortens to 5.2s, and ideal wind drops to 20%. Interestingly, the favorable south quadrant still accounts for 27.5% of the direction mix, with S (11.6%) and SSW (10.1%) dominating. This means the angle is right, but the energy is not enough to make it punch. Most of the south-quadrant waves fall in the 0-1m range, producing groveling conditions at best. The dominant swell directions are WSW and WNW, both of which are poorly aligned for this SSE-facing stretch. Average air temperature climbs to 12.4°C, water temp reaches 16.2°C, and precipitation drops to 1.88 mm/day. If the north winds blow over a small S/SSW windswell, you can still find the odd rideable wave, but the days of consistent surf are behind you until autumn.
Average Spot conditions at Kastro Point in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Kastro Point 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 Kastro Point for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kastro Point 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 Kastro Point.