By combining one of the largest satellite constellations with advanced weather forecasting models, Spire gives you best-in-class forecasting at the global level.

  • The highest volume of radio occultation (RO) data ever available gives you the most precise weather data available. 
  • Enjoy detailed atmospheric metrics, with zero calibration needed. 
  • Our 12km weather forecast resolution means you get a crystal clear view of weather patterns, even in the most remote regions. 
  • Get your weather and AIS data from a single provider, simplifying your tracking & data needs.
spire maritime

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The Most Valuable Weather Forecast API

A Spire expert will contact you to answer your questions and help you get set-up

The Most Valuable Weather Predictions

One Company’s Plan To Forecast Extreme Weather

Forbes, September 9, 2019
Extreme weather is becoming more frequent as the Earth warms, providing more fuel for hurricanes, flooding and other phenomena that threaten infrastructure and ecosystems. Spire announced it is collecting 5,000 radio occultation profiles daily in an effort to predict when and where such events occur. The technology of radio occultation is a way of remote sensing that can measure the physical properties of the atmosphere. Spire's daily mark of 5,000 profiles triples the amount of this kind of data available worldwide.  [Read More in Forbes]

Save Fuel & Time

Sail ships at correct speeds to arrive at ports on time.  Challenging routes like the Tokar Gap, are now manageable.

Ship owners need to know how best to ventilate based on humidity and dew point. Forecast data over open

oceans enable optimal decisions to prevent cargo sweat.

Optimize Cargo Holds

Timely Data

Hourly forecasts for first 24 hours + every 6h up to 7 days. Highly valuable 12km 1/8th-degree resolution.

Our restful APIs allow quick

and easy data queries for more

efficient and modern workflow.

Faster Data Delivery

Maritime Analytics Beyond AIS Data

Trusted By Many Companies Around The Globe

Spire's easy-to-use API had us up and running in minutes. We were able to effortlessly complete a visualization proof-of-concept for a client

Keith Fraley



Spire is an ideal partner for us because they are innovative and nimble, and focused on leading edge technology

Paul Woods

Chief Technology Officer
Global Fishing Watch

See Our AIS Data In Action

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This demo shows you how AIS data integrates easily with visualization platforms, using our in-house platform* we also demonstrate how Spire Sense Cloud integrates weather data into its premium predictive model.

spire maritime

Start Your Free Trial Today

The Most Valuable Weather Forecast API

A Spire expert will contact you to answer your questions and help you get set-up