The best time to visit Senja for most people is summertime. The long days and warmer weather ensure the best conditions for hiking and camping. The optimal time to visit for the northern lights is in autumn or late winter/early spring. Senja has very similar seasons to its northerly neighbor Tromsø.
Summertime on Senja
The months from June to September are the warmest on the island and suited to hiking, fishing, and camping. You can experience the midnight sun from the middle of May to the end of July, with almost endless days for a month either side of this period.
High temperatures during summer are usually between 10 and 15°C but highs of 20°C are possible. As Senja is a mountainous island by the open ocean, the weather can vary a lot. If you spend a few days on the island there will almost certainly be a rainy day.
As with any trip to Northern Norway, be prepared for any weather and try to build in a few days of flexibility to allow for changing conditions.
Best time to see the northern lights on Senja
From September the days become increasingly shorter and this means the northern lights begin to show themselves. At the end of November the polar night begins and the sun is no longer visible.
The weather is somewhat unpredictable into January. From the middle of the month the sun starts to show itself once again. Conditions for northern lights viewing are very good into April.
In spring Senja is covered in snow, and although hiking is not possible, the ever-increasing daylight ensures the island is a beautiful sight. Temperatures through winter are quite mild considering the northerly location, hovering between 0 and -10°C. The roads are slippery with ice and you should only drive if you have experience on icy roads.
Hopefully this guide to the seasons has helped you decide when to go to Senja. If you have any questions about your trip, just let us know in the comments below.