At this latitude the sun+ is visible for 15 hours, 37 minutes during the summer solstice+ and 8 hours, 46 minutes during the winter solstice+. The midday sun stands 21.6 degrees above the southern horizon at the December solstice, 68.4 degrees at the June solstice, and exactly 45.0 degrees at the two equinoxes.
Starting at the Prime Meridian+ and heading eastwards, the parallel 45° north passes through:
: | Co-ordinates
| Country, territory or sea
All of mainland New Brunswick lies north of the 45th parallel. The southernmost point in mainland New Brunswick, just north of the 45th parallel, is Greens Point, approximately west of Saint John+. Approximately two-thirds of Deer Island+, plus all of Campobello+ and Grand Manan+ islands, are south of the 45th parallel.