Conditions at Stockton in April
April: Building S/SE Swell, But Onshore Winds Lurk
April sees the first real push of S and SSE swell: S is 14.2% and SSE is 14.0%, with ESE (13.4%) and SE (12.3%) not far behind. But the average height drops to 2ft (0.6m) and the average period holds at 6.6s, so most of that swell is in the 1.6-3ft (0.5-1m) range. The wind distribution becomes more balanced: S (9.3%) and SSW (9.0%) are now common onshore directions, while WNW (10.4%) and NW (8.7%) still offer clean windows. This is the month where morning sessions are critical - the sea breeze builds by midday and turns the south-facing break to mush. Water temp warms to 10.4°C and air temps average 10.6°C, making it more comfortable to sit in the lineup and wait for that clean morning push.
Average Spot conditions at Stockton in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Stockton 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 Stockton for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Stockton 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 Stockton.