Wave Height
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Significant wave height
REAL-TIME MARINE DATA
Marine Weather
Monitor waves, wind, sea temperature and marine conditions worldwide.
Waiting for data
Popular Marine Areas
Quick access to major ports and marine areas
CURRENT CONDITIONS
Tokyo Bay
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Marine conditions
Feels like --
Sea temperature--
Wave Period
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Primary wave period
Wave Direction
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Wave propagation direction
Wind Speed
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Wind Gusts
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Maximum wind gust
Swell Height
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Sea Temperature
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Near-surface sea temperature
Humidity
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Relative humidity
More Marine Data
Detailed atmospheric and marine conditions
Pressure--
Precipitation--
Cloud Cover--
Visibility--
Wind Direction--
Wave Direction--
Swell Direction--
Data Time--
About Marine Weather Data
Marine weather data is provided by upstream weather models and data services. Wave height, wave period, swell and sea temperature may vary depending on model resolution and data source. Data is for informational purposes only and should not replace professional marine, navigation or safety forecasts.
Frequently Asked Questions
What marine weather metrics are available? +
The available metrics include wave height, wave period, wave direction, swell height, swell period, wind speed, wind direction, wind gusts, sea temperature, air temperature, humidity, pressure, precipitation and cloud cover.
What does wave height mean? +
Wave height describes the vertical size of waves at sea. Different data providers may use different statistical definitions, such as significant wave height, so values can vary between services.
Can this data be used for navigation? +
This page is intended for information and data exploration. Navigation, offshore operations, fishing and other safety-critical activities should rely on certified marine forecasts and official local warnings.
Can I check different ports? +
Yes. Use the search box or popular marine areas to switch locations. You can also use browser geolocation to check weather near your current position.
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Disclaimer: Marine weather data is provided for informational purposes only. Actual sea conditions can change rapidly. Do not use this data as the sole basis for navigation, offshore operations or safety decisions.