A basic KNMI weather API
Switch branches/tags
Nothing to show
Clone or download


WeerAPI: A basic KNMI weather API

This is a very basic JSON API for very basic weather data from the Royal Netherlands Meteorological Institute.

The KNMI offers no simple API for simple data, so I built this one, which scrapes their website. Currently, it only offers a single API call, for the latest weather observations at 36 monitoring stations.


Call http://weer.solidlinks.nl/actueel/ or run your own instance. Be gentle if you want to use mine :)

The data format should mostly speak for itself. Units are:

  • Temperatuur is in degrees celcius
  • Humidity is a percentage
  • Wind speed is in m/s and Beaufort
  • Visibility is in meters
  • Pressure is in hPa


  • The data is cached for two minutes. The KNMI refreshes this data every ten minutes.
  • The geographical coordinates of the measuring stations are very rough. If you can provide better ones, create an issue or a pull request.
  • Please attribute KNMI as a source if you use this.