Live data
69.6°N
Tromsø, under the auroral oval
Aurora forecast for Tromsø
Activity, cloud and darkness for tonight.
Arctic tools · free
The tools we use to plan Arctic sailing
Aurora and Svalbard live, a sun calculator, a packing list, the rules. Free, no sign-up.
Live data
78.2°N
Longyearbyen, the main settlement
Svalbard conditions now
Air, sea, light and the ice chart.
Calculator
127days
of midnight sun, Longyearbyen 2027
Midnight sun and polar night calculator
Any place, any date, next to your city.
Guide
60
items, two voyages
Arctic sailing packing list
By voyage. Tick it off as you pack.
Guide
10
Svalbard rules, each with its source
Svalbard rules, explained
Distances, permits and protected areas, with sources.
Where the numbers come from
- Aurora activity · NOAA Space Weather Prediction Center · public domain
- Weather, sea and ice · MET Norway and the Norwegian Ice Service · CC BY 4.0
- Sun · NOAA solar equations, computed at sea level
- Rules · Governor of Svalbard, Lovdata, Visit Tromsø
More about the sources
- Aurora activity: NOAA Space Weather Prediction Center (public domain).
- Weather, sea and ice charts: MET Norway and the Norwegian Ice Service (CC BY 4.0).
- Sun: the NOAA solar equations, computed at sea level (sun's centre at −0.833°); mountains shorten the visible sun.
- Rules: the Governor of Svalbard, Lovdata and the other sources linked on each rule.
Planning to sail up here?
Cap II's 2027 season sails from Tromsø: Svalbard in June–July, northern lights and whales in winter 2027–28. All dates are provisional.