The Arctic latitude is generally considered to be north of 66.5 degrees north. This line is known as the Arctic Circle.

Here's why:

* Arctic Circle: This is the southernmost latitude where the sun remains continuously above the horizon for 24 hours on the summer solstice and continuously below the horizon for 24 hours on the winter solstice.

* Polar Regions: The region north of the Arctic Circle is considered the Arctic region, characterized by long periods of darkness and daylight, cold temperatures, and ice.

However, it's important to note that some definitions of the Arctic region may extend further south depending on the specific criteria used.