On a clear day in June the terrace has sun 07:00–16:10, about 9 hours in total. In short: morning sun and sun at lunch.
The story of Blecktornskällaren
Blecktornskällaren, at Ringvägen 147 on Södermalm, has been open since 1927, which makes it one of the older Stockholm restaurants still in business. The dining room keeps much of its period character.
Ringvägen was long known as Stockholm's Béarnaise Belt, lined with bars where a big piece of meat with béarnaise sauce, potato purée and a beer was the main draw. Blecktornskällaren is one of the places that remain from those days, and steak with béarnaise is still on offer.
Sources: Blecktornskällaren: Om oss · Visit Stockholm: Ringvägen, a street that swapped meat and potatoes for international cuisine (2024)
How Stoligt works it out
Every ten minutes we draw a line from each terrace toward the sun and check whether a building or hill is tall enough to block it. Building heights come from OpenStreetMap and ground heights from Lantmäteriet, the Swedish mapping agency. The times assume a clear day, so clouds are not included here. They are on the live map, which shows today's weather.
Trees, parasols and awnings are not in the model, and we don't know exactly where on the pavement the tables stand. Treat the times as an educated guess, often accurate to within ten minutes.