July 21, 2026 · Louisville, USA
Sunset in Louisville today is at 21:03. Day length is 14h 26m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Louisville's coordinates and updated daily.
Louisville lies at 38°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 Louisville.
The longest day in Louisville is around 14h 50m (around June 21). The shortest is around 9h 30m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:46 | 07:59 | 9h 46m |
| February | 18:21 | 07:36 | 10h 45m |
| March | 19:49 | 07:57 | 11h 53m |
| April | 20:18 | 07:09 | 13h 9m |
| May | 20:47 | 06:34 | 14h 13m |
| June | 21:08 | 06:20 | 14h 48m |
| July | 21:07 | 06:32 | 14h 36m |
| August | 20:40 | 06:58 | 13h 42m |
| September | 19:55 | 07:25 | 12h 30m |
| October | 19:08 | 07:51 | 11h 17m |
| November | 17:33 | 07:24 | 10h 9m |
| December | 17:24 | 07:53 | 9h 32m |