Conditions at Ibaraki in September
September: Typhoon Power Meets Onshore Wind
September is a month of building swell but deteriorating wind odds. The average height jumps to 1.6m (5.2ft) with a 9.4s period, and E (26.1%) and ENE (22.9%) swells dominate, with ESE (16.3%) and NE (6.9%) feeding the mix. There is real power in the water from active typhoons and early-season extratropical storms, and 1.5-2.5m waves are common. However, ideal offshore winds are just 17% of the time - the lowest of the year - as NE (22.7%) and ENE (14.3%) winds blow onshore on the exposed beach. Air temps cool slightly to 23.3°C, water stays warm at 23.4°C, and precipitation soars to 6.65 mm/day. It can be a frustrating month: waves are there, but the wind often wrecks them. Score the dawn windows and west wind days and you will find overhead typhoon leftovers.
Average Spot conditions at Ibaraki in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ibaraki during September. 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 September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ibaraki for September. 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.