| Sunrise | Sunset | Daylight | |
|---|---|---|---|
| Today | 06:34 | 18:28 | 11h 54m |
| Tomorrow | 06:34 | 18:26 | 11h 52m |
| Change | — | −2m | −2m |
Positive change in sunset / daylight = days are getting longer. Negative change in sunrise = sun is rising earlier.
Today's light segments for Porto Alegre. Amber = daylight, violet = twilight, dark = night.
Sunrise and sunset on the 1st of each month in Porto Alegre.
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 05:27 | 19:30 | 14h 03m |
| February | 05:53 | 19:25 | 13h 32m |
| March | 06:16 | 19:01 | 12h 45m |
| April | 06:36 | 18:24 | 11h 48m |
| May | 06:54 | 17:52 | 10h 58m |
| June | 07:13 | 17:34 | 10h 21m |
| July | 07:22 | 17:36 | 10h 14m |
| August | 07:12 | 17:52 | 10h 40m |
| September | 06:43 | 18:10 | 11h 27m |
| October | 06:05 | 18:26 | 12h 21m |
| November | 05:32 | 18:47 | 13h 15m |
| December | 05:17 | 19:12 | 13h 55m |
Porto Alegre is located at 30.03°S, 51.23°W. Its latitude determines how dramatically daylight hours change through the year.
The city uses the America/Sao_Paulo 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 Porto Alegre this falls around 12:24 in mid-summer and 12:15 in December, reflecting UTC offset and any DST adjustments.