The Midnight Sun (sun visible at local midnight) occurs north of the Arctic Circle (66.56°N) during summer. In Norway, the window depends entirely on **latitude**:
| Location | Latitude | Midnight Sun Period | Duration |
|---|---|---|---|
| North Cape (Nordkapp) | 71.17°N | May 14 – Jul 29 | 77 days |
| Hammerfest | 70.66°N | May 16 – Jul 27 | 73 days |
| Tromsø | 69.65°N | May 20 – Jul 22 | 64 days |
| Lofoten (Svolvær) | 68.23°N | May 28 – Jul 14 | 48 days |
| Bodø | 67.28°N | Jun 4 – Jul 8 | 35 days |
| Arctic Circle (Saltfjellet) | 66.56°N | Jun 12 – Jul 1 | 19 days |
No true midnight sun, but **bright nights** (civil twilight all night) occur up to ~60°N (Oslo: ~59.9°N has "white nights" late May–mid-Jul, sun dips <6° below horizon).
May 14 – July 29 at North Cape; **May 20 – July 22** in Tromsø (most accessible major city).