Marine weather data you can trust

Our network of marine weather sensors provides real time confidence and reduces forecast uncertainty by up to 50%.

The most accurate marine weather forecast. Anywhere.

Marine weather forecasts have been unreliable because they lack accurate real-time data. Our privately-owned network of open ocean sensors fills this data gap and reduces uncertainty in marine weather forecasts by up to 50%. A few lines of code give you more accurate real-time conditions and the best forecasts across our world's oceans.

Free API Access

Ready to maximize voyage gains and safety?
Explore Wayfinder ship routing

Dynamic route optimization, powered by the global Spotter weather sensor network 

Sofar global network of Spotter buoys

We own and operate the largest open-ocean weather sensor network. By assimilating this data into our global weather model, we produce wave and swell forecasts that are 20%-50% more accurate than NOAA and ECMWF

Wayfinder optimization engine

Provides an objective optimization for the entire voyage that evaluates over 100 million route options in every calculation. Dynamic updates for waypoints and speed profiles are available every 6 hours. 

Real-time route updates via the Wayfinder App

Lightweight app designed for captains to provide routing guidance that accounts for weather, market variability, and sea keeping. Responsive performance even in low-bandwidth environments in the open ocean.

Optimize for voyage gains, not just bunker savings

Wayfinder takes user-set business metrics to optimize voyage returns by considering weather, market impact, contract terms, and strategic initiatives (e.g. time charter index, demurrage, bunker prices, CO₂ targets).

Collect your own data? Check out our ocean tools

Our ocean tools are built to last, designed for usability and affordability, and validated to provide high-fidelity ocean data.


Get real-time marine weather data anywhere.

Wind, Wave, and Temperature Data

Spotter collects 3D displacement time series and water temperature data. The 2D wave spectrum, surface wind velocity, and Sea Surface Temperature (SST) are calculated and stored onboard.

Compact & Portable

Spotter can be shipped anywhere around the world, carried by hand, and deployed without any special equipment.

Solar Powered

Self-contained, low maintenance, and always ready to go.

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Explore the underwater world with ease.

Tough & Portable

Trident is ultra-compact, lightweight, and can operate in any condition.

Amazing Underwater Video

Stream live from your phone or tablet in low-latency, and record in full HD simultaneously.

Elegant Controls

Trident’s intuitive controls make it easy to fly so you can focus on the mission at hand.

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Spotter + Smart Mooring

Get real-time access to your underwater sensors.

Sensor modularity

The system is designed to integrate with most sensors. You pick the sensor and at what depth you want it, we take care of the rest.

Easy Deployment

Smart Mooring + Spotter comes as a single package that can be deployed from any size vessel.

Real-time Data

Never worry about whether your sensor is working. Data from sensors is available in real-time in the Spotter Dashboard and API.

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What Makes Our Data Unique

Real-time Sensor Network

We build and deploy our own marine weather sensors, which allows us to maintain and operate the largest privately-owned marine weather sensor network in the world.

Our network provides unprecedented access to real-time ocean weather data and makes the Sofar Marine Weather Forecast better than any other.

Free API Access

Data-Driven Solutions

Data is the key to better weather forecasts. To get all our data into our models, we use the latest advances in data-assimilation strategies and machine learning.

Our models already reduce forecast uncertainty by up to 50%. And we continue to improve our data-assimilation strategies every day.

Free API Access

Flexible API

Our goal is to make access to ocean data easy. Our API is designed to provide seamless integration of our data into your products and offerings.

We currently offer three different API packages.

Marine Weather API

Access to the best marine weather forecasts anywhere in the world.

Wave Spectra API

Access to 16-day forecasts of 2D wave spectra anywhere in the world.

Spotter Sensor API

Access to our global network of Spotter buoys, both real-time and historical.

Questions about your marine data needs? Contact us

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Success stories

Our products are used worldwide by amazing people and organizations to collect data, create ocean awareness, and build ocean industries.

Oceanographic Consultancy

MetOcean Solutions

After a year-long 4,000 mile voyage through the frigid waters of the Southern Ocean, while being exposed to some of the largest waves on the planet, Spotters cross the stormy waters of the Drake Passage.

Educational Program

Australian National Maritime Museum

Trident captures the excitement of underwater discovery, giving the controls to participants and bringing them a real-life experience of underwater science.

Marine renewables

Wave Swell Energy

Wave Swell Energy has partnered with Sofar to deploy a Spotter for their wave energy project on King Island, Tasmania, Australia, to demonstrate the commercial viability of their proprietary Uniwave technology when deployed at large scale.

Oceanographic Consultancy

SPC Fiji

Spotter buoy in Fiji is using new approaches to monitor surrounding coastal waters.  It uses a combination of temperature and wave height monitoring sensors deployed on a moored buoy to provide high resolution ocean data for researchers, policy-makers and maritime commerce.