Sunrise and sunset times in New Castle, CO
Check out today's and tomorrow's sunrise and sunset times in New Castle, CO, United States, as well as the whole calendar for September 2026.
Today
September 10, 2026 . Current time: 10:06:51 am
First light at 6:19:54 am
Sunrise time: 6:45:40 am
Sunset time: 7:28:21 pm
Last light at 7:54:07 pm
Day length: 12 hours, 42 minutes
9 hours, 21 minutes left for today's sunset in New Castle
Moon rose on Sep 10 at 6:12 AM
Moon will set on Sep 10 at 7:12 PMMoon phase: 🌑 New Moon (0%)🌑 New moon: today at 9:27 PM · 🌕 Full moon: Sep 26 at 10:50 AMTomorrow
September 11, 2026
First light at 6:20:52 am
Sunrise time: 6:46:36 am
Sunset time: 7:26:43 pm
Last light at 7:52:27 pm
Day length: 12 hours, 40 minutes
Tomorrow will be 2 minutes shorter than today in New Castle
Moon will rise on Sep 11 at 7:22 AM Moon will set on Sep 11 at 7:35 PMMoon phase: 🌒 Waxing Crescent (2%)
- New Castle, Colorado
- Latitude: 39.572758 (North)
- Longitude: -107.536446 (West)
- Time zone: Mountain Time MDT
Shortest day in New Castle, 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 25 minutes.Longest day in New Castle, CO
The longest day of the year was 2 months and 19 days ago, during the summer solstice on June 21, 2026, with a daylight length of 15 hours and 1 minutes.
September 2026 - New Castle, 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 September in New Castle.
The day length shortens by 1 hour, 13 minutes over the course of September 2026 in New Castle, CO - from 13 hours, 5 minutes on the first day to 11 hours, 51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tue, Sep 1 | 6:11:12 am | 6:37:23 am | 7:42:43 pm | 8:08:53 pm | 13h 5m 20s | -2m -30s | 1:10:03 pm | 58.5° | 5:38:23 am | 8:41:43 pm | 5:04:13 am | 9:15:53 pm | 10h 55m 35s | 🌖 (82%) |
| Wed, Sep 2 | 6:12:11 am | 6:38:18 am | 7:41:09 pm | 8:07:16 pm | 13h 2m 51s | -2m -29s | 1:09:44 pm | 58.1° | 5:39:27 am | 8:40:00 pm | 5:05:26 am | 9:14:01 pm | 10h 58m 4s | 🌖 (73%) |
| Thu, Sep 3 | 6:13:09 am | 6:39:13 am | 7:39:34 pm | 8:05:38 pm | 13h 0m 21s | -2m -30s | 1:09:24 pm | 57.8° | 5:40:31 am | 8:38:17 pm | 5:06:38 am | 9:12:10 pm | 11h 0m 35s | 🌖 (62%) |
| Fri, Sep 4 | 6:14:08 am | 6:40:09 am | 7:37:59 pm | 8:04:00 pm | 12h 57m 50s | -2m -31s | 1:09:04 pm | 57.4° | 5:41:35 am | 8:36:34 pm | 5:07:49 am | 9:10:19 pm | 11h 3m 5s | 🌗 (51%) |
| Sat, Sep 5 | 6:15:06 am | 6:41:04 am | 7:36:24 pm | 8:02:22 pm | 12h 55m 20s | -2m -30s | 1:08:44 pm | 57° | 5:42:38 am | 8:34:50 pm | 5:09:01 am | 9:08:27 pm | 11h 5m 35s | 🌘 (40%) |
| Sun, Sep 6 | 6:16:04 am | 6:41:59 am | 7:34:48 pm | 8:00:44 pm | 12h 52m 49s | -2m -31s | 1:08:24 pm | 56.6° | 5:43:41 am | 8:33:07 pm | 5:10:11 am | 9:06:36 pm | 11h 8m 7s | 🌘 (29%) |
| Mon, Sep 7 | 6:17:02 am | 6:42:55 am | 7:33:12 pm | 7:59:05 pm | 12h 50m 17s | -2m -32s | 1:08:03 pm | 56.3° | 5:44:43 am | 8:31:23 pm | 5:11:21 am | 9:04:45 pm | 11h 10m 38s | 🌘 (19%) |
| Tue, Sep 8 | 6:17:59 am | 6:43:50 am | 7:31:35 pm | 7:57:26 pm | 12h 47m 45s | -2m -32s | 1:07:42 pm | 55.9° | 5:45:46 am | 8:29:39 pm | 5:12:31 am | 9:02:54 pm | 11h 13m 10s | 🌘 (11%) |
| Wed, Sep 9 | 6:18:57 am | 6:44:45 am | 7:29:58 pm | 7:55:46 pm | 12h 45m 13s | -2m -32s | 1:07:22 pm | 55.5° | 5:46:48 am | 8:27:55 pm | 5:13:40 am | 9:01:04 pm | 11h 15m 42s | 🌘 (5%) |
| Thu, Sep 10 | 6:19:54 am | 6:45:40 am | 7:28:21 pm | 7:54:07 pm | 12h 42m 41s | -2m -32s | 1:07:01 pm | 55.1° | 5:47:50 am | 8:26:12 pm | 5:14:48 am | 8:59:13 pm | 11h 18m 15s | 🌘 (1%) |
| Fri, Sep 11 | 6:20:52 am | 6:46:36 am | 7:26:43 pm | 7:52:27 pm | 12h 40m 7s | -2m -34s | 1:06:39 pm | 54.8° | 5:48:51 am | 8:24:28 pm | 5:15:56 am | 8:57:23 pm | 11h 20m 48s | 🌑 (0%) |
| Sat, Sep 12 | 6:21:49 am | 6:47:31 am | 7:25:06 pm | 7:50:48 pm | 12h 37m 35s | -2m -32s | 1:06:18 pm | 54.4° | 5:49:52 am | 8:22:44 pm | 5:17:04 am | 8:55:33 pm | 11h 23m 20s | 🌒 (2%) |
| Sun, Sep 13 | 6:22:46 am | 6:48:26 am | 7:23:28 pm | 7:49:08 pm | 12h 35m 2s | -2m -33s | 1:05:57 pm | 54° | 5:50:53 am | 8:21:00 pm | 5:18:11 am | 8:53:43 pm | 11h 25m 53s | 🌒 (5%) |
| Mon, Sep 14 | 6:23:43 am | 6:49:21 am | 7:21:50 pm | 7:47:28 pm | 12h 32m 29s | -2m -33s | 1:05:36 pm | 53.6° | 5:51:54 am | 8:19:17 pm | 5:19:17 am | 8:51:54 pm | 11h 28m 27s | 🌒 (11%) |
| Tue, Sep 15 | 6:24:40 am | 6:50:17 am | 7:20:12 pm | 7:45:48 pm | 12h 29m 55s | -2m -34s | 1:05:14 pm | 53.2° | 5:52:55 am | 8:17:34 pm | 5:20:23 am | 8:50:05 pm | 11h 31m 0s | 🌒 (18%) |
| Wed, Sep 16 | 6:25:37 am | 6:51:12 am | 7:18:33 pm | 7:44:08 pm | 12h 27m 21s | -2m -34s | 1:04:53 pm | 52.8° | 5:53:55 am | 8:15:50 pm | 5:21:29 am | 8:48:16 pm | 11h 33m 35s | 🌒 (26%) |
| Thu, Sep 17 | 6:26:34 am | 6:52:08 am | 7:16:55 pm | 7:42:28 pm | 12h 24m 47s | -2m -34s | 1:04:31 pm | 52.4° | 5:54:55 am | 8:14:07 pm | 5:22:34 am | 8:46:28 pm | 11h 36m 8s | 🌒 (35%) |
| Fri, Sep 18 | 6:27:31 am | 6:53:03 am | 7:15:16 pm | 7:40:49 pm | 12h 22m 13s | -2m -34s | 1:04:10 pm | 52.1° | 5:55:55 am | 8:12:25 pm | 5:23:39 am | 8:44:40 pm | 11h 38m 43s | 🌓 (44%) |
| Sat, Sep 19 | 6:28:28 am | 6:53:59 am | 7:13:38 pm | 7:39:09 pm | 12h 19m 39s | -2m -34s | 1:03:48 pm | 51.7° | 5:56:55 am | 8:10:42 pm | 5:24:44 am | 8:42:53 pm | 11h 41m 17s | 🌓 (54%) |
| Sun, Sep 20 | 6:29:24 am | 6:54:55 am | 7:11:59 pm | 7:37:30 pm | 12h 17m 4s | -2m -35s | 1:03:27 pm | 51.3° | 5:57:54 am | 8:09:00 pm | 5:25:48 am | 8:41:06 pm | 11h 43m 52s | 🌔 (63%) |
| Mon, Sep 21 | 6:30:21 am | 6:55:51 am | 7:10:21 pm | 7:35:50 pm | 12h 14m 30s | -2m -34s | 1:03:06 pm | 50.9° | 5:58:53 am | 8:07:18 pm | 5:26:52 am | 8:39:20 pm | 11h 46m 26s | 🌔 (72%) |
| Tue, Sep 22 | 6:31:18 am | 6:56:47 am | 7:08:43 pm | 7:34:11 pm | 12h 11m 56s | -2m -34s | 1:02:45 pm | 50.5° | 5:59:53 am | 8:05:37 pm | 5:27:55 am | 8:37:34 pm | 11h 49m 0s | 🌔 (80%) |
| Wed, Sep 23 | 6:32:15 am | 6:57:43 am | 7:07:04 pm | 7:32:32 pm | 12h 9m 21s | -2m -35s | 1:02:23 pm | 50.1° | 6:00:52 am | 8:03:55 pm | 5:28:58 am | 8:35:49 pm | 11h 51m 35s | 🌔 (87%) |
| Thu, Sep 24 | 6:33:12 am | 6:58:39 am | 7:05:26 pm | 7:30:53 pm | 12h 6m 47s | -2m -34s | 1:02:03 pm | 49.7° | 6:01:50 am | 8:02:15 pm | 5:30:01 am | 8:34:04 pm | 11h 54m 9s | 🌔 (93%) |
| Fri, Sep 25 | 6:34:09 am | 6:59:35 am | 7:03:48 pm | 7:29:15 pm | 12h 4m 13s | -2m -34s | 1:01:42 pm | 49.3° | 6:02:49 am | 8:00:34 pm | 5:31:03 am | 8:32:20 pm | 11h 56m 44s | 🌔 (98%) |
| Sat, Sep 26 | 6:35:05 am | 7:00:32 am | 7:02:10 pm | 7:27:37 pm | 12h 1m 38s | -2m -35s | 1:01:21 pm | 49° | 6:03:48 am | 7:58:55 pm | 5:32:05 am | 8:30:37 pm | 11h 59m 19s | 🌕 (100%) |
| Sun, Sep 27 | 6:36:02 am | 7:01:29 am | 7:00:33 pm | 7:25:59 pm | 11h 59m 4s | -2m -34s | 1:01:01 pm | 48.6° | 6:04:46 am | 7:57:15 pm | 5:33:07 am | 8:28:54 pm | 12h 1m 53s | 🌖 (100%) |
| Mon, Sep 28 | 6:37:00 am | 7:02:26 am | 6:58:56 pm | 7:24:22 pm | 11h 56m 30s | -2m -34s | 1:00:41 pm | 48.2° | 6:05:45 am | 7:55:36 pm | 5:34:09 am | 8:27:12 pm | 12h 4m 27s | 🌖 (97%) |
| Tue, Sep 29 | 6:37:57 am | 7:03:23 am | 6:57:19 pm | 7:22:45 pm | 11h 53m 56s | -2m -34s | 1:00:21 pm | 47.8° | 6:06:43 am | 7:53:58 pm | 5:35:10 am | 8:25:31 pm | 12h 7m 1s | 🌖 (92%) |
| Wed, Sep 30 | 6:38:54 am | 7:04:20 am | 6:55:42 pm | 7:21:08 pm | 11h 51m 22s | -2m -34s | 1:00:01 pm | 47.4° | 6:07:42 am | 7:52:20 pm | 5:36:11 am | 8:23:51 pm | 12h 9m 36s | 🌖 (85%) |
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Sunrise and Sunset photos in New Castle, CO
Enjoy this beautiful gallery of images of the sunset and sunrise at New Castle, CO. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in New Castle, CO - 2026
The following graph shows sunrise and sunset times in New Castle, 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 New Castle, CO.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in New Castle, CO
In New Castle, CO, the earliest sunrise of 2026 is on June 13 at 5:40 am, while the latest sunrise is on October 31 at 7:36 am. The earliest sunset is on December 7 at 4:47 pm, and the latest sunset is on June 27 at 8:43 pm.
New Castle, CO gets 5h 35m more daylight on the longest day than on the shortest one (15h 01m versus 9h 25m). Averaged over the whole year, a day lasts 12h 15m.
New Castle, CO Analemma
Due to Earth's tilted axis and slightly elliptical orbit, the Sun is never seen in the same position at noon in New Castle. Throughout the year, it slowly traces this figure-eight:
Move along the curve to read the Sun's altitude and azimuth for any day of the year in New Castle.
Over the year, the 12:00 Sun swings between just 27° above the horizon (around Dec 21) and 73.7° (around Jun 21) in New Castle. The smaller loop sits at the top, the signature of a Northern Hemisphere analemma.
Detailed Analemma Chart
The technical chart below plots one dot per day, labels the first day of each month, marks the solstices, equinoxes, perihelion and aphelion, and draws the noon altitude of the equinoxes (90° minus your latitude) together with its ±23.4° seasonal limits.
Why does the figure look wider here than in the sky view above?
Both draw the same data, but with different conventions. The sky view uses the same scale on both axes, so it shows the analemma with its true proportions, as a camera would capture it: about 47° tall and only a few degrees wide. This chart, like most technical analemma diagrams, stretches each axis independently to fill the plot, expanding the narrow azimuth range several times so its day-to-day variation can actually be read. Also, azimuth is not sky distance: near the zenith, one degree of azimuth spans much less than one degree across the sky, which further widens the figure in this representation.
Places near New Castle, CO
These nearby towns and cities have almost the same sunrise and sunset times as New Castle, CO — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Silt 7 miGlenwood Springs 11 miRifle 13 miCarbondale 21 miParachute 29 miBuford 29 miBasalt 30 miGypsum 32 mi