Conditions at Omaezaki in January
January: The Peak of the Northwesterly Monsoon
January locks Omaezaki into the deep winter pattern. The dominant swell energy comes from the W (22.9%) and WNW (34.1%), with the most frequent size class sitting in the 1-1.5m (3-5ft) range. That means plenty of waves, but they arrive with a short, average period of 6.6s, so the lineup can feel punchy and sectiony rather than clean and lined up. Only about 9% of the total swell arrives from the S/SSW/SW window that really opens up this SSW-facing beach.
The wind story is even more important. WNW flow dominates a massive 52.4% of the time, with much of it in the 30-50kph range, and that puts a strong cross-shore, bumpy texture on the surface. You need the rare N/NNE or NNW offshore day to get this stretch glassing off during winter. With air temps around 9.2°C and water at 15.4°C, it is cold, so come prepared and keep expectations realistic for short-period, mostly average surf.
Average Spot conditions at Omaezaki in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Omaezaki during January. 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 Omaezaki for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Omaezaki for January. 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 Omaezaki.