| Sunrise | Sunset | Daylight | |
|---|---|---|---|
| Today | 05:55 | 17:57 | 12h 02m |
| Tomorrow | 05:55 | 17:57 | 12h 02m |
| Change | — | — | — |
Positive change in sunset / daylight = days are getting longer. Negative change in sunrise = sun is rising earlier.
Today's light segments for São Luís. Amber = daylight, violet = twilight, dark = night.
Sunrise and sunset on the 1st of each month in São Luís.
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 05:53 | 18:09 | 12h 16m |
| February | 06:05 | 18:18 | 12h 13m |
| March | 06:06 | 18:15 | 12h 09m |
| April | 05:59 | 18:05 | 12h 06m |
| May | 05:54 | 17:56 | 12h 02m |
| June | 05:56 | 17:55 | 11h 59m |
| July | 06:02 | 18:01 | 11h 59m |
| August | 06:04 | 18:04 | 12h 00m |
| September | 05:57 | 18:00 | 12h 03m |
| October | 05:44 | 17:52 | 12h 08m |
| November | 05:35 | 17:47 | 12h 12m |
| December | 05:39 | 17:54 | 12h 15m |
São Luís is located at 2.53°S, 44.27°W. Its latitude determines how dramatically daylight hours change through the year.
The city uses the America/Fortaleza timezone (GMT-3). It does not observe Daylight Saving Time, so solar times shift gradually through the year without abrupt clock changes.
Solar noon — the moment the sun reaches its highest point in the sky — occurs when the sun crosses the local meridian. In São Luís this falls around 11:56 in mid-summer and 11:47 in December, reflecting UTC offset and any DST adjustments.