Sunrise and sunset times in Castle Rock, CO
Check out today's and tomorrow's sunrise and sunset times in Castle Rock, CO, United States, as well as the whole calendar for August 2026.
Today
August 20, 2026 . Current time: 10:55:12 pm
First light at 5:48:57 am
Sunrise time: 6:15:48 am
Sunset time: 7:49:41 pm
Last light at 8:16:32 pm
Day length: 13 hours, 33 minutes
Sunset in Castle Rock was 3 hours, 5 minutes ago
Moon rose on Aug 20 at 2:53 PM
Moon will set on Aug 20 at 11:53 PMMoon phase: 🌔 Waxing Gibbous (60%)🌕 Full moon: Aug 27 at 10:19 PM · 🌑 New moon: Sep 10 at 9:27 PMTomorrow
August 21, 2026
First light at 5:49:57 am
Sunrise time: 6:16:44 am
Sunset time: 7:48:16 pm
Last light at 8:15:02 pm
Day length: 13 hours, 31 minutes
Tomorrow will be 2 minutes shorter than today in Castle Rock
Moon will rise on Aug 21 at 3:51 PM Moon will set on Aug 22 at 12:00 AMMoon phase: 🌔 Waxing Gibbous (70%)
- Castle Rock, Colorado
- Latitude: 39.372211
- Longitude: -104.856087
- Time zone: Mountain Time MDT
Shortest day in Castle Rock, CO
The shortest day of the year will be in 4 months, during the winter solstice on December 21, 2026, with a daylight length of 9 hours and 26 minutes.Longest day in Castle Rock, CO
The longest day of the year was 2 months and 1 day ago, during the summer solstice on June 20, 2026, with a daylight length of 14 hours and 59 minutes.
August 2026 - Castle Rock, Colorado - Sunrise and sunset calendar
Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of August in Castle Rock.
The day length shortens by 1 hour, 7 minutes over the course of August 2026 in Castle Rock, CO - from 14 hours, 15 minutes on the first day to 13 hours, 7 minutes on the last day.
| Day | First Light | Sunrise | Sunset | Last Light | Day Length | Day Length Variation | Solar Noon
Time of day when the sun reaches its highest point in the sky.
|
Max Sun Altitude | Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night Length
Calculated form this day's sunset to the next day's sunrise.
|
Moon phase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sat, Aug 1 | 5:29:50 am | 5:58:14 am | 8:13:17 pm | 8:41:41 pm | 14h 15m 3s | 14h 15m 3s | 1:05:46 pm | 57.2° | 4:53:08 am | 9:18:24 pm | 4:13:01 am | 9:58:30 pm | 9h 45m 52s | 🌖 (93%) |
| Sun, Aug 2 | 5:30:50 am | 5:59:09 am | 8:12:14 pm | 8:40:33 pm | 14h 13m 5s | -1m -58s | 1:05:41 pm | 57° | 4:54:16 am | 9:17:06 pm | 4:14:24 am | 9:56:58 pm | 9h 47m 49s | 🌖 (87%) |
| Mon, Aug 3 | 5:31:50 am | 6:00:03 am | 8:11:09 pm | 8:39:23 pm | 14h 11m 6s | -1m -59s | 1:05:36 pm | 56.7° | 4:55:25 am | 9:15:47 pm | 4:15:48 am | 9:55:25 pm | 9h 49m 49s | 🌖 (79%) |
| Tue, Aug 4 | 5:32:50 am | 6:00:58 am | 8:10:04 pm | 8:38:12 pm | 14h 9m 6s | -2m 0s | 1:05:31 pm | 56.4° | 4:56:35 am | 9:14:27 pm | 4:17:11 am | 9:53:51 pm | 9h 51m 49s | 🌖 (70%) |
| Wed, Aug 5 | 5:33:50 am | 6:01:53 am | 8:08:56 pm | 8:36:59 pm | 14h 7m 3s | -2m -3s | 1:05:25 pm | 56.2° | 4:57:44 am | 9:13:06 pm | 4:18:34 am | 9:52:15 pm | 9h 53m 52s | 🌖 (59%) |
| Thu, Aug 6 | 5:34:50 am | 6:02:48 am | 8:07:48 pm | 8:35:46 pm | 14h 5m 0s | -2m -3s | 1:05:18 pm | 55.9° | 4:58:53 am | 9:11:43 pm | 4:19:58 am | 9:50:38 pm | 9h 55m 56s | 🌗 (48%) |
| Fri, Aug 7 | 5:35:51 am | 6:03:44 am | 8:06:38 pm | 8:34:30 pm | 14h 2m 54s | -2m -6s | 1:05:11 pm | 55.6° | 5:00:03 am | 9:10:19 pm | 4:21:21 am | 9:49:01 pm | 9h 58m 1s | 🌘 (37%) |
| Sat, Aug 8 | 5:36:52 am | 6:04:39 am | 8:05:26 pm | 8:33:14 pm | 14h 0m 47s | -2m -7s | 1:05:03 pm | 55.3° | 5:01:12 am | 9:08:54 pm | 4:22:44 am | 9:47:22 pm | 10h 0m 9s | 🌘 (26%) |
| Sun, Aug 9 | 5:37:52 am | 6:05:35 am | 8:04:14 pm | 8:31:56 pm | 13h 58m 39s | -2m -8s | 1:04:54 pm | 55° | 5:02:21 am | 9:07:27 pm | 4:24:07 am | 9:45:42 pm | 10h 2m 17s | 🌘 (17%) |
| Mon, Aug 10 | 5:38:53 am | 6:06:31 am | 8:03:00 pm | 8:30:38 pm | 13h 56m 29s | -2m -10s | 1:04:45 pm | 54.8° | 5:03:31 am | 9:06:00 pm | 4:25:29 am | 9:44:01 pm | 10h 4m 26s | 🌘 (9%) |
| Tue, Aug 11 | 5:39:54 am | 6:07:26 am | 8:01:45 pm | 8:29:18 pm | 13h 54m 19s | -2m -10s | 1:04:36 pm | 54.5° | 5:04:40 am | 9:04:31 pm | 4:26:51 am | 9:42:20 pm | 10h 6m 37s | 🌘 (3%) |
| Wed, Aug 12 | 5:40:54 am | 6:08:22 am | 8:00:29 pm | 8:27:56 pm | 13h 52m 7s | -2m -12s | 1:04:25 pm | 54.2° | 5:05:49 am | 9:03:02 pm | 4:28:14 am | 9:40:37 pm | 10h 8m 49s | 🌑 (0%) |
| Thu, Aug 13 | 5:41:55 am | 6:09:18 am | 7:59:11 pm | 8:26:34 pm | 13h 49m 53s | -2m -14s | 1:04:15 pm | 53.8° | 5:06:58 am | 9:01:31 pm | 4:29:35 am | 9:38:54 pm | 10h 11m 3s | 🌑 (0%) |
| Fri, Aug 14 | 5:42:55 am | 6:10:14 am | 7:57:53 pm | 8:25:11 pm | 13h 47m 39s | -2m -14s | 1:04:03 pm | 53.5° | 5:08:07 am | 9:00:00 pm | 4:30:57 am | 9:37:10 pm | 10h 13m 16s | 🌒 (3%) |
| Sat, Aug 15 | 5:43:56 am | 6:11:09 am | 7:56:34 pm | 8:23:47 pm | 13h 45m 25s | -2m -14s | 1:03:51 pm | 53.2° | 5:09:16 am | 8:58:27 pm | 4:32:18 am | 9:35:25 pm | 10h 15m 31s | 🌒 (8%) |
| Sun, Aug 16 | 5:44:57 am | 6:12:05 am | 7:55:13 pm | 8:22:22 pm | 13h 43m 8s | -2m -17s | 1:03:39 pm | 52.9° | 5:10:24 am | 8:56:54 pm | 4:33:38 am | 9:33:40 pm | 10h 17m 48s | 🌒 (15%) |
| Mon, Aug 17 | 5:45:57 am | 6:13:01 am | 7:53:52 pm | 8:20:56 pm | 13h 40m 51s | -2m -17s | 1:03:26 pm | 52.6° | 5:11:32 am | 8:55:20 pm | 4:34:58 am | 9:31:54 pm | 10h 20m 5s | 🌒 (23%) |
| Tue, Aug 18 | 5:46:57 am | 6:13:57 am | 7:52:29 pm | 8:19:29 pm | 13h 38m 32s | -2m -19s | 1:03:13 pm | 52.3° | 5:12:40 am | 8:53:45 pm | 4:36:18 am | 9:30:08 pm | 10h 22m 23s | 🌒 (32%) |
| Wed, Aug 19 | 5:47:57 am | 6:14:52 am | 7:51:06 pm | 8:18:01 pm | 13h 36m 14s | -2m -18s | 1:02:59 pm | 51.9° | 5:13:48 am | 8:52:10 pm | 4:37:37 am | 9:28:21 pm | 10h 24m 42s | 🌒 (42%) |
| Thu, Aug 20 | 5:48:57 am | 6:15:48 am | 7:49:41 pm | 8:16:32 pm | 13h 33m 53s | -2m -21s | 1:02:45 pm | 51.6° | 5:14:56 am | 8:50:34 pm | 4:38:56 am | 9:26:33 pm | 10h 27m 3s | 🌓 (51%) |
| Fri, Aug 21 | 5:49:57 am | 6:16:44 am | 7:48:16 pm | 8:15:02 pm | 13h 31m 32s | -2m -21s | 1:02:30 pm | 51.3° | 5:16:03 am | 8:48:57 pm | 4:40:14 am | 9:24:45 pm | 10h 29m 23s | 🌔 (61%) |
| Sat, Aug 22 | 5:50:57 am | 6:17:39 am | 7:46:50 pm | 8:13:32 pm | 13h 29m 11s | -2m -21s | 1:02:14 pm | 50.9° | 5:17:10 am | 8:47:19 pm | 4:41:32 am | 9:22:57 pm | 10h 31m 45s | 🌔 (70%) |
| Sun, Aug 23 | 5:51:57 am | 6:18:35 am | 7:45:23 pm | 8:12:01 pm | 13h 26m 48s | -2m -23s | 1:01:59 pm | 50.6° | 5:18:17 am | 8:45:41 pm | 4:42:50 am | 9:21:08 pm | 10h 34m 7s | 🌔 (78%) |
| Mon, Aug 24 | 5:52:56 am | 6:19:30 am | 7:43:55 pm | 8:10:29 pm | 13h 24m 25s | -2m -23s | 1:01:43 pm | 50.3° | 5:19:23 am | 8:44:02 pm | 4:44:06 am | 9:19:19 pm | 10h 36m 31s | 🌔 (85%) |
| Tue, Aug 25 | 5:53:55 am | 6:20:26 am | 7:42:27 pm | 8:08:57 pm | 13h 22m 1s | -2m -24s | 1:01:26 pm | 49.9° | 5:20:29 am | 8:42:23 pm | 4:45:23 am | 9:17:29 pm | 10h 38m 54s | 🌔 (92%) |
| Wed, Aug 26 | 5:54:55 am | 6:21:21 am | 7:40:57 pm | 8:07:24 pm | 13h 19m 36s | -2m -25s | 1:01:09 pm | 49.6° | 5:21:35 am | 8:40:43 pm | 4:46:38 am | 9:15:40 pm | 10h 41m 19s | 🌔 (96%) |
| Thu, Aug 27 | 5:55:54 am | 6:22:16 am | 7:39:27 pm | 8:05:50 pm | 13h 17m 11s | -2m -25s | 1:00:52 pm | 49.2° | 5:22:41 am | 8:39:03 pm | 4:47:54 am | 9:13:50 pm | 10h 43m 44s | 🌔 (99%) |
| Fri, Aug 28 | 5:56:52 am | 6:23:11 am | 7:37:57 pm | 8:04:16 pm | 13h 14m 46s | -2m -25s | 1:00:34 pm | 48.9° | 5:23:46 am | 8:37:22 pm | 4:49:08 am | 9:12:00 pm | 10h 46m 9s | 🌕 (100%) |
| Sat, Aug 29 | 5:57:51 am | 6:24:06 am | 7:36:25 pm | 8:02:41 pm | 13h 12m 19s | -2m -27s | 1:00:16 pm | 48.5° | 5:24:51 am | 8:35:41 pm | 4:50:22 am | 9:10:09 pm | 10h 48m 36s | 🌖 (99%) |
| Sun, Aug 30 | 5:58:50 am | 6:25:01 am | 7:34:53 pm | 8:01:05 pm | 13h 9m 52s | -2m -27s | 12:59:57 pm | 48.2° | 5:25:55 am | 8:34:00 pm | 4:51:36 am | 9:08:19 pm | 10h 51m 3s | 🌖 (95%) |
| Mon, Aug 31 | 5:59:48 am | 6:25:56 am | 7:33:21 pm | 7:59:30 pm | 13h 7m 25s | -2m -27s | 12:59:39 pm | 47.8° | 5:26:59 am | 8:32:18 pm | 4:52:49 am | 9:06:29 pm | 10h 53m 30s | 🌖 (90%) |
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Sunrise and Sunset photos in Castle Rock, CO
Enjoy this beautiful gallery of images of the sunset and sunrise at Castle Rock, CO. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Castle Rock, CO - 2026
The following graph shows sunrise and sunset times in Castle Rock, CO for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Castle Rock, CO.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Castle Rock, CO
In Castle Rock, CO, the earliest sunrise of 2026 is on June 13 at 5:30 am, while the latest sunrise is on October 31 at 7:25 am. The earliest sunset is on December 7 at 4:37 pm, and the latest sunset is on June 28 at 8:31 pm.
Castle Rock, CO gets 5h 33m more daylight on the longest day than on the shortest one (14h 59m versus 9h 26m). Averaged over the whole year, a day lasts 12h 15m.
Places near Castle Rock, CO
These nearby towns and cities have almost the same sunrise and sunset times as Castle Rock, CO — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Franktown 9 kmCastle Pines 12 kmLarkspur 16 kmParker 18 kmLone Tree 19 kmHighlands Ranch 22 kmElizabeth 22 kmCentennial 23 km