The best time to visit Coral Harbour is during the summer months, from late June to early September, and again in late winter, from March to April.
For those interested in wildlife viewing, particularly polar bears, late June to early September is ideal. During this period, the sea ice has broken up, allowing for boat excursions to see bears along the coastline and other marine wildlife like walruses and various bird species. The longer daylight hours also make for more extended exploration and better photography opportunities.
If your primary interest is experiencing the Arctic in its full winter glory, with opportunities for aurora borealis viewing and traditional winter activities, then March and April are excellent. The days are getting longer, offering more light for activities like dog sledding, snowmobiling, and ice fishing, but the nights are still dark enough for good aurora displays.