Longest and shortest day in Brazzaville
In Brazzaville, Republic of the Congo, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 12h 22m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 11h 53m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:03 | 18:09 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 06:04 | 17:56 | 11h 53m |
| September equinox | Tuesday, 22 September 2026 | 05:48 | 17:54 | 12h 6m |
| December solstice | Monday, 21 December 2026 | 05:45 | 18:08 | 12h 22m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 05:57 | 18:18 | 12h 21m |
| February | 06:05 | 18:20 | 12h 15m |
| March | 06:03 | 18:11 | 12h 8m |
| April | 05:58 | 17:59 | 12h 1m |
| May | 05:57 | 17:52 | 11h 55m |
| June | 06:03 | 17:55 | 11h 53m |
| July | 06:08 | 18:01 | 11h 54m |
| August | 06:04 | 18:02 | 11h 58m |
| September | 05:51 | 17:56 | 12h 5m |
| October | 05:38 | 17:50 | 12h 12m |
| November | 05:34 | 17:52 | 12h 19m |
| December | 05:42 | 18:05 | 12h 22m |
Why the day gets longer and shorter in Brazzaville
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Brazzaville 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 Brazzaville sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Brazzaville
When is the longest day in Brazzaville?
The longest day in Brazzaville falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 12h 22m of daylight, sunrise at 05:45 and sunset at 18:08.
When is the shortest day in Brazzaville?
The shortest day in Brazzaville falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 11h 53m of daylight, sunrise at 06:04 and sunset at 17:56.
How much does day length change through the year in Brazzaville?
Between the longest and shortest day, Brazzaville gains and loses about 0h 29m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Brazzaville's coordinates with SunCalc, not looked up from a table.