When must you use dipped headlights also during the day?

In Germany, dipped headlights must be used during the day in conditions that reduce visibility, such as fog, falling snow, or rain. This helps other drivers see your vehicle more easily and enhances safety. A misted windscreen, while it affects your view, does not legally require switching on dipped headlights during the day. The rule focuses on weather conditions that impair overall visibility on the road, so using dipped headlights in fog, snow, or rain is mandatory. This ensures you are visible to others in poor weather, reducing accident risks.