Longest and shortest day in Porto Alegre
In Porto Alegre, Brazil, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 14h 5m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 10h 13m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:28 | 18:35 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 07:20 | 17:33 | 10h 13m |
| September equinox | Tuesday, 22 September 2026 | 06:14 | 18:21 | 12h 7m |
| December solstice | Monday, 21 December 2026 | 05:20 | 19:25 | 14h 5m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 05:38 | 19:30 | 13h 52m |
| February | 06:05 | 19:12 | 13h 7m |
| March | 06:25 | 18:42 | 12h 17m |
| April | 06:43 | 18:05 | 11h 22m |
| May | 07:02 | 17:39 | 10h 37m |
| June | 07:18 | 17:32 | 10h 13m |
| July | 07:19 | 17:42 | 10h 23m |
| August | 06:58 | 18:00 | 11h 2m |
| September | 06:23 | 18:17 | 11h 54m |
| October | 05:46 | 18:35 | 12h 48m |
| November | 05:20 | 18:58 | 13h 38m |
| December | 05:18 | 19:22 | 14h 4m |
Why the day gets longer and shorter in Porto Alegre
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Porto Alegre 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 Porto Alegre sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Porto Alegre
When is the longest day in Porto Alegre?
The longest day in Porto Alegre falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 14h 5m of daylight, sunrise at 05:20 and sunset at 19:25.
When is the shortest day in Porto Alegre?
The shortest day in Porto Alegre falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 10h 13m of daylight, sunrise at 07:20 and sunset at 17:33.
How much does day length change through the year in Porto Alegre?
Between the longest and shortest day, Porto Alegre gains and loses about 3h 52m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Porto Alegre's coordinates with SunCalc, not looked up from a table.