Longest and shortest day in San Luis Potosi
In San Luis Potosi, Mexico, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 13h 29m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 47m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:47 | 18:55 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 06:01 | 19:30 | 13h 29m |
| September equinox | Tuesday, 22 September 2026 | 06:32 | 18:40 | 12h 7m |
| December solstice | Monday, 21 December 2026 | 07:18 | 18:05 | 10h 47m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:25 | 18:21 | 10h 56m |
| February | 07:15 | 18:41 | 11h 26m |
| March | 06:52 | 18:53 | 12h 1m |
| April | 06:24 | 19:03 | 12h 40m |
| May | 06:04 | 19:16 | 13h 12m |
| June | 05:59 | 19:28 | 13h 29m |
| July | 06:09 | 19:30 | 13h 21m |
| August | 06:21 | 19:14 | 12h 53m |
| September | 06:30 | 18:46 | 12h 16m |
| October | 06:40 | 18:18 | 11h 39m |
| November | 06:56 | 18:00 | 11h 5m |
| December | 07:15 | 18:02 | 10h 47m |
Why the day gets longer and shorter in San Luis Potosi
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, San Luis Potosi 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 San Luis Potosi sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in San Luis Potosi
When is the longest day in San Luis Potosi?
The longest day in San Luis Potosi falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 13h 29m of daylight, sunrise at 06:01 and sunset at 19:30.
When is the shortest day in San Luis Potosi?
The shortest day in San Luis Potosi falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 47m of daylight, sunrise at 07:18 and sunset at 18:05.
How much does day length change through the year in San Luis Potosi?
Between the longest and shortest day, San Luis Potosi gains and loses about 2h 42m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from San Luis Potosi's coordinates with SunCalc, not looked up from a table.