Longest and shortest day in Porto Velho
In Porto Velho, Brazil, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 12h 38m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 11h 37m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:19 | 18:26 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 06:29 | 18:05 | 11h 37m |
| September equinox | Tuesday, 22 September 2026 | 06:05 | 18:11 | 12h 6m |
| December solstice | Monday, 21 December 2026 | 05:54 | 18:32 | 12h 38m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:07 | 18:42 | 12h 35m |
| February | 06:18 | 18:41 | 12h 23m |
| March | 06:19 | 18:29 | 12h 9m |
| April | 06:18 | 18:12 | 11h 54m |
| May | 06:20 | 18:03 | 11h 43m |
| June | 06:27 | 18:04 | 11h 37m |
| July | 06:31 | 18:11 | 11h 40m |
| August | 06:25 | 18:14 | 11h 49m |
| September | 06:09 | 18:12 | 12h 3m |
| October | 05:52 | 18:10 | 12h 18m |
| November | 05:44 | 18:15 | 12h 31m |
| December | 05:51 | 18:29 | 12h 38m |
Why the day gets longer and shorter in Porto Velho
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Porto Velho 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 Velho 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 Velho
When is the longest day in Porto Velho?
The longest day in Porto Velho falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 12h 38m of daylight, sunrise at 05:54 and sunset at 18:32.
When is the shortest day in Porto Velho?
The shortest day in Porto Velho falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 11h 37m of daylight, sunrise at 06:29 and sunset at 18:05.
How much does day length change through the year in Porto Velho?
Between the longest and shortest day, Porto Velho gains and loses about 1h 1m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Porto Velho's coordinates with SunCalc, not looked up from a table.