howmuchsun

Daylight hours in Fortaleza

Fortaleza gets 12h 20m of daylight on its longest day in December, and 11h 54m on its shortest in June — a difference of 0h 26m across the year.

How fast the days change

Around 7 March, Fortaleza gains or loses about 0.2 minutes of daylight every day.

Barely perceptible — near the equator the length of the day hardly changes at all, and the seasons announce themselves through rain and heat instead.

Sunrise and sunset by month

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

MonthSunriseSunsetDaylightSolar noon
January 05:34 17:52 12h 19m 11:43
February 05:41 17:55 12h 13m 11:48
March 05:39 17:46 12h 08m 11:43
April 05:33 17:34 12h 02m 11:34
May 05:32 17:28 11h 57m 11:30
June 05:37 17:31 11h 54m 11:34
July 05:42 17:37 11h 55m 11:40
August 05:38 17:38 12h 00m 11:38
September 05:26 17:31 12h 05m 11:29
October 05:14 17:25 12h 11m 11:19
November 05:10 17:27 12h 17m 11:18
December 05:19 17:39 12h 20m 11:29

Solstices and equinoxes

DateSunriseSunsetDaylight
March equinox 20 Mar 05:38 17:44 12h 07m
June solstice 21 Jun 05:38 17:33 11h 54m
September equinox 22 Sep 05:23 17:30 12h 07m
December solstice 21 Dec 05:22 17:42 12h 20m

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 Brazil

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