Conditions at Ibaraki in April
April: Transition and Easterly Energy
April is the shoulder season at Ibaraki. Average swell height eases to 1.6m (5.2ft), period drops to 9.2s, and the window swings around to ENE (17.1%), E (17.2%), ESE (14.9%) and NE (11.9%). This is a reflection of spring storm tracks pushing more east and southeast energy toward Japan. The waves are still solid and rippable, especially when a late-season low parks east of the country, but consistency drops. Ideal offshore winds occur 23% of the time, with SSW winds becoming a key player at 12.1%, often providing clean morning texture before the sea breeze kicks in. Air temps warm to 13.5°C, water 14.0°C, and precipitation climbs to 4.05 mm/day. A 4/3 becomes your best friend and the beach starts to lighten up.
Average Spot conditions at Ibaraki in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Ibaraki 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 Ibaraki for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ibaraki 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 Ibaraki.