July 20, 2026 · São Luís, Brazil
Sunset in São Luís today is at 18:04. Day length is 11h 59m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for São Luís's coordinates and updated daily.
São Luís lies at 3°S. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for São Luís.
The longest day in São Luís is around 12h 16m (around December 21). The shortest is around 11h 58m (around June 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:14 | 05:59 | 12h 15m |
| February | 18:18 | 06:07 | 12h 12m |
| March | 18:11 | 06:04 | 12h 8m |
| April | 18:00 | 05:56 | 12h 3m |
| May | 17:55 | 05:54 | 12h 0m |
| June | 17:58 | 05:59 | 11h 59m |
| July | 18:03 | 06:04 | 11h 59m |
| August | 18:04 | 06:02 | 12h 2m |
| September | 17:57 | 05:51 | 12h 5m |
| October | 17:49 | 05:39 | 12h 10m |
| November | 17:49 | 05:36 | 12h 14m |
| December | 18:01 | 05:45 | 12h 16m |