Longest and shortest day in Monterrey
In Monterrey, Mexico, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 13h 45m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 32m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:45 | 18:52 | 12h 8m |
| June solstice | Sunday, 21 June 2026 | 05:50 | 19:35 | 13h 45m |
| September equinox | Tuesday, 22 September 2026 | 06:29 | 18:37 | 12h 8m |
| December solstice | Monday, 21 December 2026 | 07:23 | 17:55 | 10h 32m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:29 | 18:12 | 10h 43m |
| February | 07:16 | 18:34 | 11h 18m |
| March | 06:50 | 18:50 | 12h 0m |
| April | 06:18 | 19:04 | 12h 46m |
| May | 05:55 | 19:19 | 13h 24m |
| June | 05:49 | 19:33 | 13h 44m |
| July | 05:59 | 19:34 | 13h 35m |
| August | 06:14 | 19:16 | 13h 2m |
| September | 06:27 | 18:45 | 12h 18m |
| October | 06:40 | 18:13 | 11h 34m |
| November | 06:59 | 17:52 | 10h 53m |
| December | 07:20 | 17:52 | 10h 33m |
Why the day gets longer and shorter in Monterrey
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Monterrey 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 Monterrey sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Monterrey
When is the longest day in Monterrey?
The longest day in Monterrey falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 13h 45m of daylight, sunrise at 05:50 and sunset at 19:35.
When is the shortest day in Monterrey?
The shortest day in Monterrey falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 32m of daylight, sunrise at 07:23 and sunset at 17:55.
How much does day length change through the year in Monterrey?
Between the longest and shortest day, Monterrey gains and loses about 3h 13m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Monterrey's coordinates with SunCalc, not looked up from a table.