monthly average hours daylight los angeles
Sunshine & Daylight Hours in Los Angeles, California, Usa Sunshine & Daylight Hours in Los Angeles, California, Usa. 1  The longest day of the year is 14:15 long and the shortest day is 9:44 long. 2  The longest day is 4:31 longer than the shortest day. 3  There is an average of 3348 hours of sunlight per year (of a possible 4383) with an average of 9:09 of sunlight per day.  It is sunny 76.4% of daylight hours.