Hours of Daylight in Iceland in October September and October both tend to have roughly 12 hours of sunlight per day. On October 1, the sun rises at 7:37 a.m. and sets at 6:56 p.m. By the end of the month, daylight hours have reduced; on October 31, the sun rises at 9:08 a.m. and sets at 5:13 p.m.