July 20, 2026 · Cayenne, French Guiana
Sunset in Cayenne today is at 18:47. Day length is 12h 22m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Cayenne's coordinates and updated daily.
Cayenne lies at 5°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Cayenne.
The longest day in Cayenne is around 12h 24m (around June 21). The shortest is around 11h 50m (around December 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:35 | 06:43 | 11h 52m |
| February | 18:43 | 06:46 | 11h 58m |
| March | 18:42 | 06:37 | 12h 5m |
| April | 18:37 | 06:24 | 12h 13m |
| May | 18:37 | 06:16 | 12h 20m |
| June | 18:43 | 06:18 | 12h 24m |
| July | 18:47 | 06:24 | 12h 23m |
| August | 18:43 | 06:26 | 12h 17m |
| September | 18:30 | 06:21 | 12h 9m |
| October | 18:17 | 06:15 | 12h 1m |
| November | 18:12 | 06:18 | 11h 54m |
| December | 18:20 | 06:30 | 11h 50m |