June 12, 2026 · St. Louis, USA
St. Louis has 14h 50m of daylight today. Sunrise is at 05:37 and sunset is at 20:26. All times are calculated astronomically for St. Louis's exact coordinates.
St. Louis lies at 39°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for St. Louis.
The longest day in St. Louis is around 14h 52m (around June 21). The shortest is around 9h 28m (around December 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 9h 45m | 07:18 | 17:03 |
| February | 10h 44m | 06:54 | 17:38 |
| March | 11h 53m | 07:15 | 19:07 |
| April | 13h 10m | 06:27 | 19:37 |
| May | 14h 15m | 05:51 | 20:05 |
| June | 14h 51m | 05:37 | 20:27 |
| July | 14h 38m | 05:48 | 20:26 |
| August | 13h 43m | 06:15 | 19:58 |
| September | 12h 30m | 06:42 | 19:12 |
| October | 11h 16m | 07:09 | 18:25 |
| November | 10h 7m | 06:43 | 16:50 |
| December | 9h 29m | 07:12 | 16:41 |