The unit of measurement for direction to evaluate where wind and swell track is arriving from. North is 0 or 360 degrees (12:00 o'clock); and then moving clockwise, east at 90 degrees (3:00 o'clock), south at 180 degrees (6:00 o'clock) and west at 270 degrees (9:00 o'clock). Northeast may be anywhere between 0 and 90 degrees, southeast between 90 and 180 degrees, southwest between 180 and 270 degrees and northwest between 270 and 360 degrees. Degrees are also used to calculate Latitude and Longitude with minutes and seconds used a fractionals in between the degrees. One degree of Latitude will always be equivalent to 60 miles at that exact same place. One degree of Longitude will always differ due to the curvature of the Earth in the direction of the poles. In addition, degrees are also used to measure water and outside air temperature.