Turn Weather Insight into a real competitive advantage


Spire Forecast API

Spire Forecast API is a simple to use API that offers access our state of the art weather forecast. Spire’s APIs are developer-friendly so you can plug and play, effortlessly adding new data and key insights into your systems. In addition to the complete documentation, we also offer outstanding support that helps you start ingesting data and building apps quickly.

More valuable forecasts

50+ high precision weather variables available anywhere in the planet in 1/8th-degree resolution (aprox. 12km).

Make better decisions

The forecasts are output hourly for 24 hours and every 6 hours for up to 7 days.

Quick and easy to use

Integrate advanced weather data, available in JSON or GRIB2 formats, directly into analytics platform easily and quickly.

Spire’s offer also include hindcast. Contact us directly for more details

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Spire Forecast API is organized in Bundles, each one grouping weather variables that are interesting for a specific domain. This brings simplicity and flexibility to have the best offer tailored for your business.


Basic Bundle

The most commonly used weather surface variables:

  • Air temperature at screen level
  • Relative humidity
  • Dewpoint temperature
  • The eastward component of the horizontal wind at 10 meters AGL
  • The northward component of the horizontal wind at 10 meters AGL
  • Air pressure adjusted to mean sea level
  • Accumulated precipitation at surface level
  • Instantaneous wind gust speed at 10m


Maritime Bundle

The Maritime bundle provides the following oceanographic forecasts at sea level:

  • Sea Surface Temperature
  • Ocean Currents (eastward component)
  • Ocean Currents (northward component)
  • Significant Wave Height


Upper air Bundle

The Upper Air bundle provides forecasts at multiple Isobaric levels:

  • Geopotential height
  • Temperature
  • u-wind component
  • v-wind component
  • Relative humidity
  • Vertical velocity
  • Absolute vorticity
  • Cloud water mixing ratio
  • Cloud ice mixing ratio


Thunderstorm Bundle

For thunderstorm conditions, the following information is available:

  • Convective Available Potential Energy at whole atmosphere
  • Convective Inhibition at whole atmosphere
  • Lifted Index
  • Storm-relative helicity
  • Storm motion (eastward component)
  • Storm motion (northward component)
  • 0-6 km shear vector (eastward component)
  • 0-6 km shear vector (northward component)
  • Precipitable Water


Aviation Bundle

The aviation bundle brings forecast to flight levels:

  • Air temperature
  • Relative humidity
  • The eastward-component of the horizontal wind
  • The northward-component of the horizontal wind
  • The horizontal surface visibility
  • The height (above sea level) where the maximum wind speed is found
  • The eastward component of the maximum horizontal wind
  • The northward component of the maximum horizontal wind
  • Potential severity of clear-air turbulence associated with wind shear (not due to mountain waves or convection)
  • Potential for aircraft icing


Agricultural Bundle

For agriculture or soil, the following surface level forecast is available:

  • Skin (surface) temperature
  • Dewpoint temperature
  • Specific humidity
  • Soil moisture (0-10 cm, 10-40 cm, 40-100 cm, 100-200 cm)
  • Soil temperature (0-10 cm, 10-40 cm, 40-100 cm, 100-200 cm)
  • Latent heat flux
  • Sensible heat flux
  • Incoming shortwave radiation from above
  • Incoming longwave radiation from above
  • Outgoing longwave radiation from the surface
  • Outgoing shortwave radiation from the surface
  • Outgoing longwave radiation from the top of the atmosphere


Renewable Energy Bundle

A bundle dedicated to wind and solar power, with:

  • The eastward and northward components of wind at 80m
  • The eastward and northward components of wind at 100m
  • The eastward and northward components of wind at 120m
  • Incoming shortwave radiation
  • Air temperature


Custom

Let us create a customized package that perfectly fit your needs.

Start building your weather applications with Spire today.

Get access to a number of advanced data-analytics, choose the package that suits your needs, and integrate it into your workflow in no time thanks to our easy-to-use APIs and on-hand support team.

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