July 21, 2026 · San Luis, Cuba
San Luis has 13h 11m of daylight today. Sunrise is at 06:35 and sunset is at 19:46. All times are calculated astronomically for San Luis's exact coordinates.
San Luis lies at 20°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for San Luis, or see daylight hours for every day of the year.
The longest day in San Luis is around 13h 21m (around June 21). The shortest is around 10h 54m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 11h 2m | 06:42 | 17:44 |
| February | 11h 28m | 06:34 | 18:03 |
| March | 11h 60m | 07:14 | 19:13 |
| April | 12h 35m | 06:47 | 19:22 |
| May | 13h 5m | 06:28 | 19:33 |
| June | 13h 21m | 06:24 | 19:45 |
| July | 13h 15m | 06:32 | 19:47 |
| August | 12h 51m | 06:44 | 19:34 |
| September | 12h 17m | 06:51 | 19:08 |
| October | 11h 43m | 06:59 | 18:42 |
| November | 11h 12m | 06:13 | 17:25 |
| December | 10h 55m | 06:31 | 17:27 |