Conditions at Oniguchi in February
February: Heavy Water and Offshore Flow
February continues the winter pattern with an average swell height of 1.3m (4.3ft) and an average period of 6.9s. The swell is still NW-heavy: NW accounts for 31.2%, NNW for 12.2% and WNW for 10.6%, while the SSW-SW-W window improves slightly to around 11%. Ideal wind is present 52% of the time, with NNW at 34.5% and NW at 18.7%. The month can produce some of the best combinations of the year when the swell direction includes WNW/WSW energy on the tail of cold fronts. The average air temperature is 12.7°C, water temperature drops to 18.2°C, and precipitation increases slightly to 4.31 mm/day. Expect clean but sometimes lumpy conditions, with the best sessions coming on days when the wind goes NO/ONO and the swell tilts more westerly.
Average Spot conditions at Oniguchi in February
Swell history for February
Wind history for February
Swell quality
Analyze the groundswell consistency at Oniguchi during February. 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 Oniguchi for your next trip in February.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Oniguchi for February. 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 Oniguchi.