Vejr & Radar weather app

Vejr & Radar is a popular weather forecasting application originally developed in Germany as the international brand of the weather service provider WetterOnline. The brand was founded in 1996 by Dr. Joachim Klaßen, a meteorologist who envisioned making complex atmospheric data accessible to the general public through the growing internet.

While the application is localized for the Danish market under the name 'Vejr & Radar', its central software development, meteorological data analysis, and corporate operations remain headquartered in Bonn, Germany. Every data point and satellite image used in the app is processed by the parent company's meteorological systems. As of 2026, the company continues to operate as an independent entity under the ownership of its founder, providing a wide range of specialized services from storm tracking to pollen count forecasts.