September to March is often referred to as northern lights season, providing the best chances for seeing the aurora – but you can also get lucky and see them in late August, or early April.
The September to March period brings long, dark nights, creating the ideal conditions for the lights to be visible. The equinoxes in March and September are also considered prime viewing times as the aurora is often brighter because of the angle of the Earth’s magnetic field. But, be warned, these months can also bring cloudy conditions, making it harder to see the lights.
If you’re wondering when the best month to see the northern lights is, we suggest planning a trip in October or December. Compared to September, October brings shorter daylight hours and more cold and clear nights, ideal for seeing the aurora.
As the peak of the season, December is another great time for spotting this phenomenon. With the longest nights of the year happening during this month, you’ll have even more chances to view the aurora. December is also a great time to visit Iceland in general, with plenty of winter activities and festive celebrations taking place.
One more tip is to avoid timing your northern lights hunt with when there’ll be a full moon if you can. The light from the moon means the sky won’t be as dark, which can make it harder to see the aurora. While it should still be visible, the full moon can reduce the contrast and result in a less visually striking display than on darker nights.