What time does it get dark in St. Louis, MO?
In St. Louis, sunset ranges from about 4:40 PM around December 7 to about 8:30 PM around June 28. The shortest day (December 22) has 9h 28m of daylight and the longest (June 21) has 14h 52m. When daylight saving time ends on Sunday, November 1, 2026, sunset jumps from about 6:03 PM to 5:02 PM overnight.
Working out today's sunset…
Sunset and last light in St. Louis, month by month
Times for the 15th of each month in 2026, local time. "Start by" is the latest start for a 30 or 60 minute run, ride or walk that finishes by sunset. Last light is when civil twilight ends and it becomes too dark to see without a light.
| Month | Sunrise | Sunset | Last light | Daylight | 30-min start by | 60-min start by |
|---|---|---|---|---|---|---|
| January | 7:18 AM | 5:04 PM | 5:33 PM | 9h 46m | 4:34 PM | 4:04 PM |
| February | 6:53 AM | 5:39 PM | 6:06 PM | 10h 46m | 5:09 PM | 4:39 PM |
| March | 7:13 AM | 7:08 PM | 7:35 PM | 11h 55m | 6:38 PM | 6:08 PM |
| April | 6:25 AM | 7:38 PM | 8:05 PM | 13h 12m | 7:08 PM | 6:38 PM |
| May | 5:50 AM | 8:06 PM | 8:36 PM | 14h 16m | 7:36 PM | 7:06 PM |
| June | 5:37 AM | 8:28 PM | 9:00 PM | 14h 51m | 7:58 PM | 7:28 PM |
| July | 5:49 AM | 8:26 PM | 8:57 PM | 14h 37m | 7:56 PM | 7:26 PM |
| August | 6:16 AM | 7:57 PM | 8:25 PM | 13h 41m | 7:27 PM | 6:57 PM |
| September | 6:43 AM | 7:11 PM | 7:37 PM | 12h 28m | 6:41 PM | 6:11 PM |
| October | 7:10 AM | 6:24 PM | 6:51 PM | 11h 13m | 5:54 PM | 5:24 PM |
| November | 6:44 AM | 4:49 PM | 5:17 PM | 10h 05m | 4:19 PM | 3:49 PM |
| December | 7:12 AM | 4:41 PM | 5:11 PM | 9h 29m | 4:11 PM | 3:41 PM |
Heading out near dark in St. Louis
From late fall through winter it is dark in St. Louis before 6 p.m., so after-work runs and walks happen in the dark for months. If you head out close to sunset, be seen and be findable: wear a light and something reflective on the parts of you that move, pick a route with streetlights and other people, and send someone a live location link with a return time before you go. Our guide to running in the dark after the clocks change covers the rest.
Questions people ask
What time does it get dark in St. Louis in winter?
In mid-December the sun sets around 4:41 PM in St. Louis and last light (the end of civil twilight) is around 5:11 PM. The earliest sunset of 2026 is about 4:40 PM, around December 7.
When is the latest sunset in St. Louis?
The latest sunset of 2026 in St. Louis is about 8:30 PM, around June 28. In mid-June, usable light lasts until roughly 9:00 PM.
How much earlier does it get dark in St. Louis after daylight saving time ends?
Daylight saving time ends on Sunday, November 1, 2026. Sunset in St. Louis moves from about 6:03 PM on October 31 to about 5:02 PM on November 1, so an after-work run that finished in daylight the week before can finish in the dark.
What time should I start a run in St. Louis to finish before dark?
Subtract your run time from sunset. A 60-minute run in St. Louis should start by about 3:41 PM in mid-December and by about 7:28 PM in mid-June. The table on this page lists the latest start for 30 and 60 minute runs in every month, and the calculator at the top gives today's times.
Keep reading
Calculated from St. Louis's coordinates (38.63, -90.20) with the standard solar position formulas used by NOAA. Times can differ by a minute or two from other sources, and hills or buildings bring darkness sooner.