howmuchsun

Daylight hours in Algiers

Algiers gets 14h 40m of daylight on its longest day in June, and 9h 40m on its shortest in December — a difference of 5h 00m across the year.

How fast the days change

Around 17 March, Algiers gains or loses about 2.4 minutes of daylight every day.

Enough to notice over a fortnight, though the seasons arrive more gently here than further from the equator.

Sunrise and sunset by month

On the 15th of each month, in Africa/Algiers local time, daylight saving included.

MonthSunriseSunsetDaylightSolar noon
January 07:59 17:54 9h 56m 12:57
February 07:35 18:27 10h 52m 13:01
March 06:58 18:54 11h 56m 12:56
April 06:13 19:21 13h 08m 12:47
May 05:40 19:47 14h 08m 12:44
June 05:28 20:08 14h 40m 12:48
July 05:40 20:06 14h 26m 12:53
August 06:05 19:39 13h 34m 12:52
September 06:30 18:55 12h 26m 12:42
October 06:55 18:11 11h 17m 12:33
November 07:25 17:38 10h 13m 12:32
December 07:52 17:32 9h 40m 12:42

Solstices and equinoxes

DateSunriseSunsetDaylight
March equinox 20 Mar 06:51 18:59 12h 08m
June solstice 21 Jun 05:29 20:09 14h 41m
September equinox 22 Sep 06:35 18:45 12h 10m
December solstice 21 Dec 07:56 17:34 9h 39m

The equinoxes give almost exactly twelve hours of daylight everywhere on earth — "almost" because sunrise is defined by the sun's upper edge rather than its centre, and the atmosphere bends its light over the horizon before it has really arrived. Both lengthen the day by a few minutes.

Other cities in Algeria

Assumptions

  • Sea-level horizon. Hills, mountains and buildings all delay sunrise and bring sunset forward, sometimes by a lot in a valley.
  • Standard refraction. Sunrise is taken at −0.833°, allowing for the sun's disc and average atmospheric bending. Unusual air conditions shift it by a minute or two.
  • Local clock time, with daylight saving applied from the IANA timezone database.

Full methodology, sources and known limitations