Longest and shortest day in Sao Luis
In Sao Luis, Brazil, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 12h 16m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 11h 59m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:01 | 18:07 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:59 | 17:58 | 11h 59m |
| September equinox | Tuesday, 22 September 2026 | 05:46 | 17:53 | 12h 6m |
| December solstice | Monday, 21 December 2026 | 05:47 | 18:03 | 12h 16m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 05:59 | 18:14 | 12h 15m |
| February | 06:05 | 18:16 | 12h 11m |
| March | 06:02 | 18:09 | 12h 7m |
| April | 05:55 | 17:58 | 12h 3m |
| May | 05:53 | 17:53 | 12h 0m |
| June | 05:58 | 17:57 | 11h 59m |
| July | 06:03 | 18:02 | 11h 59m |
| August | 06:00 | 18:02 | 12h 2m |
| September | 05:49 | 17:55 | 12h 5m |
| October | 05:38 | 17:47 | 12h 10m |
| November | 05:34 | 17:48 | 12h 14m |
| December | 05:44 | 18:00 | 12h 16m |
Why the day gets longer and shorter in Sao Luis
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Sao Luis leans toward the Sun for part of the year and away for the rest. When it leans toward the Sun the days lengthen and the Sun climbs higher; half a year later the opposite happens. The size of the swing depends on how far Sao Luis sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Sao Luis
When is the longest day in Sao Luis?
The longest day in Sao Luis falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 12h 16m of daylight, sunrise at 05:47 and sunset at 18:03.
When is the shortest day in Sao Luis?
The shortest day in Sao Luis falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 11h 59m of daylight, sunrise at 05:59 and sunset at 17:58.
How much does day length change through the year in Sao Luis?
Between the longest and shortest day, Sao Luis gains and loses about 0h 17m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Sao Luis's coordinates with SunCalc, not looked up from a table.