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Aviation API Variables

These variables are returned in the JSON and GeoJSON observation payloads for METAR and TAF requests.

airTemperature​

The observed or forecast air temperature.

  • Unit: Cel

dewpointTemperature​

The observed or forecast dewpoint temperature.

  • Unit: Cel

qnh​

Altimeter setting (atmospheric pressure reduced to sea level).

  • Unit: hPa

surfaceWind​

An object detailing the wind conditions. Includes meanWindDirection, meanWindSpeed, and may include windGustSpeed, extremeClockwiseWindDirection, and extremeCounterClockwiseWindDirection.

  • Units: deg, Kn

horizontalVisibility​

The horizontal visibility distance.

  • Unit: m

cloud​

An object containing an array of cloud layers. Each layer specifies the cloud amount (e.g., Few, Scattered, Broken, Overcast) and base height.

  • Unit: Ft