Conditions at Sri Lanka in April
April: Big Swell, Baggy Winds
April is a classic inter-monsoon month - there is plenty of swell in the water but the wind consistency falls away. The ideal wind percentage drops to 22%, as the wind rose now swings toward the E/ESE quadrant (E 19.1%, ESE 32.8%, SE 13.0%) in the afternoon, bringing onshore conditions to the ENE beach. That said, the swell is still powerful: average height sits at 5.6ft (1.7m) and the average period climbs to 13.8s. The swell direction remains focused toward SSW (65.4%) and SW (12.0%), though a growing S component (17.6%) indicates more energy arriving from the N as the Bay of Bengal churns. In the early mornings, a brief offshore breeze can still surface, but by midday the cross-onshore flow usually takes over. Water temp holds at 29.1°C, air temp around 28.1°C, and precipitation is relatively low at 4.23 mm/day - so if you pick the pockets, April can deliver memorable long-period walls.
Average Spot conditions at Sri Lanka in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Sri Lanka 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 Sri Lanka for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sri Lanka 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 Sri Lanka.