Best Time To Visit Iceland For Northern Lights 2025. Because this is the darkest moment of the night, when. For the northern lights to be visible, you need two things:
It stands to reason that these are the months that see the longest hours of darkness, after all, and therefore when you can see the northern lights most easily if they show up. The best time to visit iceland for the northern lights is during the winter months, from late september to late march.