The best time to go to Hellnar is during the shoulder seasons of May-June and September-October, or the peak summer months of July-August.
For those who want to experience the full grandeur of Hellnar's landscapes with the best weather for hiking and exploring, the summer months of July and August are ideal. You'll enjoy long daylight hours, often stretching late into the evening, and milder temperatures, which are superb for exploring the coastal paths and lava fields around Arnarstapi and Hellnar. This is also the best time for boat tours to see bird cliffs and potentially spot whales.
If you're keen to avoid the busiest crowds but still want pleasant weather and good accessibility, May, June, September, and early October are excellent choices. During these shoulder months, the days are still long enough for extensive sightseeing, and the weather remains relatively mild. You might even catch the Northern Lights in September and October as the nights grow longer, adding a magical element to your trip.
Winter, from November to April, offers a dramatically different experience, characterised by short daylight hours, colder temperatures, and the highest chance of seeing the Northern Lights. However, road conditions can be challenging, with frequent closures due to snow and ice, which can impact travel plans significantly.