July 21, 2026 · Ulsan, South Korea
Sunset in Ulsan today is at 19:36. Day length is 14h 13m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Ulsan's coordinates and updated daily.
Ulsan lies at 36°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
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 Ulsan.
The longest day in Ulsan is around 14h 34m (around June 21). The shortest is around 9h 45m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:33 | 07:32 | 10h 0m |
| February | 18:05 | 07:11 | 10h 53m |
| March | 18:30 | 06:35 | 11h 55m |
| April | 18:55 | 05:52 | 13h 4m |
| May | 19:21 | 05:19 | 14h 1m |
| June | 19:40 | 05:08 | 14h 33m |
| July | 19:40 | 05:19 | 14h 21m |
| August | 19:14 | 05:42 | 13h 32m |
| September | 18:32 | 06:06 | 12h 27m |
| October | 17:49 | 06:29 | 11h 20m |
| November | 17:18 | 06:59 | 10h 19m |
| December | 17:12 | 07:25 | 9h 46m |