Your trusted global weather partner
Achieve greater forecasting accuracy and make smarter weather-driven decisions with Spire.
Groundbreaking Space‑based Weather Data
Spire’s vast low-orbit satellite constellation collects real-time data from every layer of the atmosphere, in even notoriously difficult high altitudes. We’re constantly adding new hardware, improving our forecast API, and customizing our predictive weather models to power your most ambitious projects.
The new benchmark for global weather data and analytics
Proprietary radio occultation technology
Spire’s 110+ satellites use radio frequency sensors to create a 3D profile of atmospheric temperature, pressure, and humidity over 10,000 times per day.
The most accurate, extensive coverage
By using radio occultation instead of weather balloons or radar, we provide much greater accuracy and depth of weather data and forecasts, even in remote areas and on the open ocean.
World-changing use cases
Spire customers use our unique weather insights to combat climate change, save billions a year in operational disruptions, and build innovative weather products that run on our data.
Seamless integration and support
Our modern APIs and web mapping service (WMS) visualizations integrate Spire into your existing workflows, piping data wherever you need it. Get outstanding support from the Spire team every step of the way.
Global weather and analytics
More than 100 high precision weather variables available anywhere on the planet
Historical weather data
Purchase global historical datasets to build custom predictive solutions.
Port and airport forecasts
Access advanced, location-specific weather predictions.