Meteomatics Weather API Response

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/meteomatics/main/json-schema/meteomatics-weather-response-schema.json",
  "title": "Meteomatics Weather API Response",
  "description": "JSON Schema for the standard weather data response from the Meteomatics Weather API (format=json).",
  "type": "object",
  "required": ["version", "user", "dateGenerated", "status", "data"],
  "properties": {
    "version": {
      "type": "string",
      "description": "API response schema version.",
      "examples": ["3.0"]
    },
    "user": {
      "type": "string",
      "description": "Username associated with the API request.",
      "examples": ["api_user"]
    },
    "dateGenerated": {
      "type": "string",
      "format": "date-time",
      "description": "UTC timestamp when the response was generated.",
      "examples": ["2026-06-12T00:01:00Z"]
    },
    "status": {
      "type": "string",
      "description": "Response status indicator.",
      "enum": ["OK", "ERROR"],
      "examples": ["OK"]
    },
    "data": {
      "type": "array",
      "description": "Array of weather parameter result objects — one per requested parameter.",
      "items": {
        "$ref": "#/$defs/ParameterData"
      }
    }
  },
  "$defs": {
    "ParameterData": {
      "type": "object",
      "title": "ParameterData",
      "description": "Weather data for a single parameter across all requested locations.",
      "required": ["parameter", "coordinates"],
      "properties": {
        "parameter": {
          "type": "string",
          "description": "Parameter code with unit (e.g. t_2m:C, precip_1h:mm, wind_speed_10m:ms).",
          "examples": ["t_2m:C", "precip_1h:mm", "wind_speed_10m:ms"]
        },
        "coordinates": {
          "type": "array",
          "description": "Results indexed by geographic coordinate.",
          "items": {
            "$ref": "#/$defs/CoordinateData"
          }
        }
      }
    },
    "CoordinateData": {
      "type": "object",
      "title": "CoordinateData",
      "description": "Time-series of weather values at a single location.",
      "required": ["lat", "lon", "dates"],
      "properties": {
        "lat": {
          "type": "number",
          "description": "Latitude in decimal degrees (WGS84). At most 6 decimal places.",
          "minimum": -90,
          "maximum": 90,
          "examples": [52.5206]
        },
        "lon": {
          "type": "number",
          "description": "Longitude in decimal degrees (WGS84). At most 6 decimal places.",
          "minimum": -180,
          "maximum": 180,
          "examples": [13.4618]
        },
        "dates": {
          "type": "array",
          "description": "Ordered list of timestamp-value pairs.",
          "items": {
            "$ref": "#/$defs/DateValue"
          }
        }
      }
    },
    "DateValue": {
      "type": "object",
      "title": "DateValue",
      "description": "A single time-stamped weather observation or forecast value.",
      "required": ["date", "value"],
      "properties": {
        "date": {
          "type": "string",
          "format": "date-time",
          "description": "UTC timestamp of the observation or forecast step.",
          "examples": ["2026-06-12T00:00:00Z"]
        },
        "value": {
          "type": ["number", "null"],
          "description": "Numeric value of the weather parameter in the requested unit. Null when data is unavailable for this point/time.",
          "examples": [18.4, -3.2, 0.0]
        }
      }
    }
  }
}