Conditions at Keramas in April
April: Swell Strengthens, Trades Take Over
April is a fair-to-poor month at Keramas, though the ocean is hardly lacking energy. The average wave height is around 3ft (0.9m), and the period climbs to 13.7s, signaling developed long-period groundswell. Swell direction is very SSW-heavy (77.2%), with S at 16.4%, SW at 4.4%, and a small SSE component. Within the SSW band, 58.2% is 2-3ft (0.5-1m) and 18.4% is 3-5ft (1-1.5m); the S direction adds another 13.9% at 2-3ft and 2.5% at 3-5ft. The swell is there, but wind becomes the problem.
The trade-wind regime accelerates: ESE (23.2%), SE (22.2%) and SSE (10.7%) winds combine for over half the month, and ideal wind drops to just 17%. Expect persistent onshore surface chop. Rain drops to 4.37mm/day, air temp is 27.1°C (24.3-30.3°C), and water temp is still warm at 29.1°C.
Average Spot conditions at Keramas in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Keramas 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 Keramas for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Keramas 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 Keramas.