Air qualityHow is the air in Medellín?

See the state of the Aburrá Valley right now: PM2.5 and the ICA index per station, accumulated rainfall, temperature, humidity, wind and pressure. Run it with the form empty and every station comes back. Free, no login.

Optional. Decimal degrees, for example 6.2442. Goes together with the longitude.

Optional. Decimal degrees, for example -75.5812. Goes together with the latitude.

Optional. Kilometres around the point, from 1 to 100. Defaults to 10.

What it shows

The Aburrá Valley station by station

SIATA (Sistema de Alerta Temprana de Medellín y el Valle de Aburrá) runs a network of stations across the valley, and this lookup returns the latest reading from all of them in three blocks. Air quality: the 24-hour average PM2.5 in micrograms per cubic metre, the matching ICA index and the municipality the station sits in. Rain: accumulated millimetres and intensity in millimetres per hour, which is what tells you whether it is actually raining in the neighbourhood you care about or only in yours. Weather: temperature, relative humidity, wind speed and direction, and atmospheric pressure. Leave everything blank and all stations come back; enter a latitude and a longitude and you get only the nearby ones, nearest first, with the distance in kilometres. Coverage is the Medellín metropolitan area, not the rest of the country.

  • Air quality
    24-hour average PM2.5 and the ICA index per station, with the municipality it sits in.
  • Rain
    Accumulated millimetres and rain intensity at each rain gauge in the network.
  • Weather
    Temperature, humidity, pressure and wind speed and direction, with the time of the reading.
FAQ

Common questions

01Do I have to fill anything in?
No. Run it with the form empty and every station in the Aburrá Valley comes back. Latitude and longitude are optional and narrow the result to the stations near a point: they go together, one without the other filters nothing, and the radius in kilometres sets how far to look.
02What does the ICA index mean?
It is Colombia's air quality index, calculated from the 24-hour average PM2.5. The higher it is, the worse the air, and it is the number the metropolitan authority uses to decide whether to declare alerts and restrictions. The lookup gives you the index and the raw PM2.5 in micrograms per cubic metre so you can judge for yourself.
03Does it cover other Colombian cities?
No. The network belongs to the Aburrá Valley: Medellín and the municipalities of its metropolitan area. For any other city this lookup has no stations to return.
04How recent is the data? Is it free?
Each station carries the time of its own last reading, so you can see how fresh it is; air quality is a 24-hour average by design, and a station that did not report comes back with no value rather than an invented one. It is free and needs no account, with a cap on lookups per hour from the same connection.
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