Longest and shortest day in Teresina
In Teresina, Brazil, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 12h 25m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 11h 50m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 05:55 | 18:01 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:58 | 17:47 | 11h 50m |
| September equinox | Tuesday, 22 September 2026 | 05:40 | 17:47 | 12h 6m |
| December solstice | Monday, 21 December 2026 | 05:36 | 18:01 | 12h 25m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 05:49 | 18:12 | 12h 23m |
| February | 05:57 | 18:13 | 12h 16m |
| March | 05:56 | 18:04 | 12h 8m |
| April | 05:51 | 17:51 | 12h 0m |
| May | 05:51 | 17:44 | 11h 53m |
| June | 05:56 | 17:46 | 11h 50m |
| July | 06:01 | 17:52 | 11h 51m |
| August | 05:57 | 17:54 | 11h 57m |
| September | 05:44 | 17:48 | 12h 4m |
| October | 05:30 | 17:43 | 12h 13m |
| November | 05:25 | 17:46 | 12h 21m |
| December | 05:33 | 17:58 | 12h 25m |
Why the day gets longer and shorter in Teresina
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Teresina 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 Teresina sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Teresina
When is the longest day in Teresina?
The longest day in Teresina falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 12h 25m of daylight, sunrise at 05:36 and sunset at 18:01.
When is the shortest day in Teresina?
The shortest day in Teresina falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 11h 50m of daylight, sunrise at 05:58 and sunset at 17:47.
How much does day length change through the year in Teresina?
Between the longest and shortest day, Teresina gains and loses about 0h 35m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Teresina's coordinates with SunCalc, not looked up from a table.