SIATA

Queries SIATA (Sistema de Alerta Temprana de Medellín y el Valle de Aburrá) for the current readings of every monitoring station in the Aburrá Valley: weather (temperature, humidity, wind, pressure), rainfall (accumulated and intensity), and air quality (24-hour PM2.5 and ICA index). POST /co/siata/v1

Field	Type	Notes
`latitude`	number	Optional. -90 to 90. Must be sent together with `longitude`.
`longitude`	number	Optional. -180 to 180. Must be sent together with `latitude`.
`radius_km`	number	Optional. Radius in km around the point, 0-100. Defaults to `10`.

All fields are optional. An empty body returns every station in the valley; latitude + longitude narrows the response to nearby stations, sorted nearest first with distance_km populated on each station.

curl https://api.croma.run/co/siata/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "latitude": 6.2442, "longitude": -75.5812, "radius_km": 5 }'

The response groups stations by kind:

{
  "data": {
    "meteorology": [
      {
        "station": "AMVA",
        "station_code": "44",
        "latitude": 6.24248,
        "longitude": -75.5735,
        "temperature_c": 22.5,
        "humidity_pct": 74.1,
        "wind_speed_ms": 5.2,
        "wind_direction_deg": 201.6,
        "wind_direction_cardinal": "SSW",
        "pressure_hpa": 825.9,
        "updated_at": "2026-07-12T22:53:02.000Z",
        "distance_km": 0.822
      }
    ],
    "rain": [
      {
        "station": "Instituto Jorge Robledo",
        "station_code": "23",
        "latitude": 6.258272,
        "longitude": -75.581128,
        "accumulated_mm": 0,
        "intensity_mm_h": 0,
        "updated_at": "2026-07-12T22:52:00.000Z",
        "distance_km": 1.564
      }
    ],
    "air_quality": [
      {
        "station": "Torre Social",
        "station_code": "81",
        "municipality": "Barbosa",
        "latitude": 6.43696,
        "longitude": -75.330452,
        "pm25": 10,
        "air_quality_index": 42,
        "updated_at": "2026-07-12T22:00:00.000Z",
        "distance_km": 4.1
      }
    ]
  }
}

Individual readings are null when a station hasn’t reported them. Air-quality values are 24-hour averages; updated_at marks the end of the averaging window. Without a location filter, distance_km is null on every station.

Coverage is the Medellín metropolitan area (Valle de Aburrá) only. Points outside the valley return empty arrays rather than an error.

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