Tradition dates the founding of Trondheim, as Nidaros, to 997 under Olav Tryggvason, and it was Norway's capital until 1217. Nidaros Cathedral, begun in 1070, was Northern Europe's most important medieval pilgrimage site and is still the northernmost medieval cathedral in the world; St. Olav's Way runs about 640 km from Oslo to its door. The city lies where the Nidelva meets the Trondheim Fjord, and NTNU, Norway's largest university with about 43,500 students, shapes its daily life. Around midsummer the sun sets at 23:40 and rises again at 03:00.
Nights sit around 3°C and afternoons around 10°C, though some days reach 15°C.
Trondheim has real seasons: summer afternoons sit around 20°C, winter ones around 2°C.
Some summer days reach 29°C, and some winter nights drop below freezing.
Rain is spread through the year: about 13 days in 30 in September, the wettest month, and 11 in April.
Wind is rarely an issue; most months sit between calm and a light breeze. The air stays clean through the year.
Days stretch to about 19.9 hours of light in June and shrink to 4.1 in December — something to weigh if you work to a fixed timezone.
No month in Trondheim matches what you're after, so come for the place rather than the weather. Expect fast internet (245 Mbps) and a high cost of living (about €2600 a month).
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