Height3.1 ft (0.9 m)Period6 sDirectionSSWTemp.0 °CWind—
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Japan real buoys
Japan wave buoys and sea conditions surf report and buoy data
Japan's exposed Pacific coastline combines real NOWPHAS observations with regional marine context. Use the station timestamp, period and direction before translating offshore data to a beach. Start with the nearest recent reference, then check wind, tide and official marine information for the specific beach.
How to read this coverage
This page brings together surf, swell and wave conditions for Japan wave buoys and sea conditions surf report and buoy data. SwellOracle separates real instrument observations from marine model points so you can understand what you are seeing before making a decision. Current coverage includes 23 recent observations and 3 model points; availability can vary by source and update time.
- Check the timestamp and source before comparing readings.
- Combine height, period and direction with your coastline orientation.
- Use models as context, not as an automatic substitute for a real buoy.
How to read Japan buoy coverage
Compare stations by coastline and exposure; a buoy near one prefecture is not a direct report for every surf break.
Keep measured observations separate from model estimates and confirm local wind, tide and official marine information.
Available coverage
23 recent observations
3 model points
0 reference stations
Latest regional observation:
Height5.7 ft (1.7 m)Period7 sDirectionETemp.0 °CWind—
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Height4.3 ft (1.3 m)Period7 sDirectionESETemp.0 °CWind—
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Height0.6 ft (0.2 m)Period5 sDirectionNNWTemp.0 °CWind—
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Height3.3 ft (1 m)Period8 sDirectionETemp.0 °CWind—
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Height1.8 ft (0.5 m)Period9 sDirectionENETemp.0 °CWind—
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Height0.6 ft (0.2 m)Period4 sDirectionNNWTemp.0 °CWind—
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Height1.9 ft (0.6 m)Period8 sDirection—Temp.0 °CWind—
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Height0 ft (0 m)Period—Direction—Temp.0 °CWind—
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Height3.1 ft (0.9 m)Period9 sDirectionNETemp.0 °CWind—
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Height2.7 ft (0.8 m)Period7 sDirectionSETemp.0 °CWind—
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Height2.3 ft (0.7 m)Period9 sDirectionETemp.0 °CWind—
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Height1.4 ft (0.4 m)Period7 sDirectionSTemp.0 °CWind—
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Height1.1 ft (0.3 m)Period6 sDirectionSSWTemp.0 °CWind—
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Height1.8 ft (0.5 m)Period7 sDirectionETemp.0 °CWind—
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Height6.2 ft (1.9 m)Period6 sDirectionESETemp.0 °CWind—
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Height4.9 ft (1.5 m)Period7 sDirectionESETemp.0 °CWind—
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Height0 ft (0 m)Period—Direction—Temp.0 °CWind—
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Height2.4 ft (0.7 m)Period5 sDirectionSTemp.0 °CWind—
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Height1 ft (0.3 m)Period8 sDirectionSSETemp.0 °CWind—
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Height2.7 ft (0.8 m)Period7 sDirectionSSWTemp.0 °CWind—
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Height2.6 ft (0.8 m)Period5 sDirectionSSWTemp.0 °CWind—
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Height5.3 ft (1.6 m)Period7 sDirectionETemp.0 °CWind—
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Height0 ft (0 m)Period—Direction—Temp.0 °CWind—
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Height2.8 ft (0.9 m)Period7 sDirectionNWTemp.0 °CWind—
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Height2.2 ft (0.7 m)Period11 sDirectionETemp.0 °CWind—
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History is enabled gradually when reusable, correctly identified observations are available. Models and references without a stored series keep their own page, but do not show historical charts.
Buoy and history FAQs
What buoy information is available for Japan wave buoys and sea conditions surf report and buoy data?
The published catalog includes 23 physical or reference stations and 3 model points for this region. Each source identifies its provider, location, data type and history status so observations are not mixed with estimates.
Why do some buoys have no historical charts?
Charts appear only when SwellOracle has a stored series of reusable, correctly identified observations. A station can keep its information page even when there is not yet a sufficient series for a chart.
What is the difference between a physical buoy and a marine model?
A physical buoy or station represents instrument measurements. A marine model estimates conditions at a grid point. Use observations as local confirmation and models as spatial context rather than treating them as equivalent sources.
How should swell height, period and direction be interpreted?
Read all three variables together: height describes the size of the signal, period helps explain its energy and direction shows where it comes from. Coastline shape, depth and local exposure can change what reaches the beach.
Keep tracking your buoys without missing a reading
Open the map, save your favorite buoys and get more context when you decide when to check conditions.
Practical takeaway
Operational buoys in Japan are shown alongside model context, with both source types kept clearly separate.