Sunrise and sunset times in Fort Collins, CO
Check out today's and tomorrow's sunrise and sunset times in Fort Collins, CO, United States, as well as the whole calendar for September 2026.
Today
September 10, 2026 . Current time: 8:29:42 am
First light at 6:09:02 am
Sunrise time: 6:35:12 am
Sunset time: 7:19:13 pm
Last light at 7:45:23 pm
Day length: 12 hours, 44 minutes
10 hours, 49 minutes left for today's sunset in Fort Collins
Moon rose on Sep 10 at 6:01 AM
Moon will set on Sep 10 at 7:02 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 6:10:02 am
Sunrise time: 6:36:10 am
Sunset time: 7:17:32 pm
Last light at 7:43:40 pm
Day length: 12 hours, 41 minutes
Tomorrow will be 2 minutes shorter than today in Fort Collins
Moon will rise on Sep 11 at 7:12 AM Moon will set on Sep 11 at 7:25 PMMoon phase: 🌒 Waxing Crescent (2%)
- Fort Collins, Colorado
- Latitude: 40.585258 (North)
- Longitude: -105.084419 (West)
- Time zone: Mountain Time MDT
Shortest day in Fort Collins, 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 19 minutes.Longest day in Fort Collins, 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 8 minutes.
September 2026 - Fort Collins, 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 Fort Collins.
The day length shortens by 1 hour, 16 minutes over the course of September 2026 in Fort Collins, CO - from 13 hours, 7 minutes on the first day to 11 hours, 50 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 | 5:59:53 am | 6:26:29 am | 7:34:00 pm | 8:00:36 pm | 13h 7m 31s | -2m -34s | 1:00:14 pm | 57.5° | 5:26:29 am | 8:34:00 pm | 4:51:37 am | 9:08:52 pm | 10h 53m 27s | 🌖 (82%) |
| Wed, Sep 2 | 6:00:55 am | 6:27:27 am | 7:32:23 pm | 7:58:55 pm | 13h 4m 56s | -2m -35s | 12:59:55 pm | 57.1° | 5:27:36 am | 8:32:14 pm | 4:52:53 am | 9:06:57 pm | 10h 56m 2s | 🌖 (73%) |
| Thu, Sep 3 | 6:01:56 am | 6:28:25 am | 7:30:46 pm | 7:57:15 pm | 13h 2m 21s | -2m -35s | 12:59:36 pm | 56.7° | 5:28:44 am | 8:30:27 pm | 4:54:09 am | 9:05:02 pm | 10h 58m 38s | 🌖 (62%) |
| Fri, Sep 4 | 6:02:58 am | 6:29:24 am | 7:29:08 pm | 7:55:34 pm | 12h 59m 44s | -2m -37s | 12:59:16 pm | 56.4° | 5:29:50 am | 8:28:41 pm | 4:55:25 am | 9:03:06 pm | 11h 1m 14s | 🌗 (51%) |
| Sat, Sep 5 | 6:03:59 am | 6:30:22 am | 7:27:29 pm | 7:53:53 pm | 12h 57m 7s | -2m -37s | 12:58:56 pm | 56° | 5:30:57 am | 8:26:54 pm | 4:56:40 am | 9:01:11 pm | 11h 3m 51s | 🌘 (40%) |
| Sun, Sep 6 | 6:04:59 am | 6:31:20 am | 7:25:51 pm | 7:52:11 pm | 12h 54m 31s | -2m -36s | 12:58:35 pm | 55.6° | 5:32:03 am | 8:25:07 pm | 4:57:54 am | 8:59:16 pm | 11h 6m 27s | 🌘 (29%) |
| Mon, Sep 7 | 6:06:00 am | 6:32:18 am | 7:24:12 pm | 7:50:29 pm | 12h 51m 54s | -2m -37s | 12:58:15 pm | 55.3° | 5:33:09 am | 8:23:20 pm | 4:59:08 am | 8:57:22 pm | 11h 9m 4s | 🌘 (19%) |
| Tue, Sep 8 | 6:07:01 am | 6:33:16 am | 7:22:32 pm | 7:48:47 pm | 12h 49m 16s | -2m -38s | 12:57:54 pm | 54.9° | 5:34:15 am | 8:21:33 pm | 5:00:21 am | 8:55:27 pm | 11h 11m 42s | 🌘 (11%) |
| Wed, Sep 9 | 6:08:01 am | 6:34:14 am | 7:20:53 pm | 7:47:05 pm | 12h 46m 39s | -2m -37s | 12:57:33 pm | 54.5° | 5:35:20 am | 8:19:46 pm | 5:01:34 am | 8:53:33 pm | 11h 14m 19s | 🌘 (5%) |
| Thu, Sep 10 | 6:09:02 am | 6:35:12 am | 7:19:13 pm | 7:45:23 pm | 12h 44m 1s | -2m -38s | 12:57:12 pm | 54.1° | 5:36:25 am | 8:17:59 pm | 5:02:46 am | 8:51:38 pm | 11h 16m 57s | 🌘 (1%) |
| Fri, Sep 11 | 6:10:02 am | 6:36:10 am | 7:17:32 pm | 7:43:40 pm | 12h 41m 22s | -2m -39s | 12:56:51 pm | 53.7° | 5:37:30 am | 8:16:13 pm | 5:03:58 am | 8:49:44 pm | 11h 19m 36s | 🌑 (0%) |
| Sat, Sep 12 | 6:11:02 am | 6:37:08 am | 7:15:52 pm | 7:41:58 pm | 12h 38m 44s | -2m -38s | 12:56:30 pm | 53.4° | 5:38:34 am | 8:14:26 pm | 5:05:09 am | 8:47:51 pm | 11h 22m 14s | 🌒 (2%) |
| Sun, Sep 13 | 6:12:02 am | 6:38:06 am | 7:14:11 pm | 7:40:15 pm | 12h 36m 5s | -2m -39s | 12:56:09 pm | 53° | 5:39:38 am | 8:12:39 pm | 5:06:20 am | 8:45:58 pm | 11h 24m 53s | 🌒 (5%) |
| Mon, Sep 14 | 6:13:02 am | 6:39:04 am | 7:12:30 pm | 7:38:32 pm | 12h 33m 26s | -2m -39s | 12:55:47 pm | 52.6° | 5:40:42 am | 8:10:52 pm | 5:07:30 am | 8:44:05 pm | 11h 27m 32s | 🌒 (11%) |
| Tue, Sep 15 | 6:14:02 am | 6:40:02 am | 7:10:49 pm | 7:36:49 pm | 12h 30m 47s | -2m -39s | 12:55:26 pm | 52.2° | 5:41:46 am | 8:09:06 pm | 5:08:39 am | 8:42:12 pm | 11h 30m 12s | 🌒 (18%) |
| Wed, Sep 16 | 6:15:02 am | 6:41:01 am | 7:09:08 pm | 7:35:07 pm | 12h 28m 7s | -2m -40s | 12:55:04 pm | 51.8° | 5:42:49 am | 8:07:19 pm | 5:09:49 am | 8:40:20 pm | 11h 32m 51s | 🌒 (26%) |
| Thu, Sep 17 | 6:16:02 am | 6:41:59 am | 7:07:27 pm | 7:33:24 pm | 12h 25m 28s | -2m -39s | 12:54:43 pm | 51.4° | 5:43:52 am | 8:05:33 pm | 5:10:57 am | 8:38:28 pm | 11h 35m 30s | 🌒 (35%) |
| Fri, Sep 18 | 6:17:02 am | 6:42:57 am | 7:05:46 pm | 7:31:41 pm | 12h 22m 49s | -2m -39s | 12:54:21 pm | 51.1° | 5:44:55 am | 8:03:48 pm | 5:12:06 am | 8:36:37 pm | 11h 38m 10s | 🌓 (44%) |
| Sat, Sep 19 | 6:18:01 am | 6:43:56 am | 7:04:04 pm | 7:29:59 pm | 12h 20m 8s | -2m -41s | 12:54:00 pm | 50.7° | 5:45:58 am | 8:02:02 pm | 5:13:14 am | 8:34:46 pm | 11h 40m 50s | 🌓 (54%) |
| Sun, Sep 20 | 6:19:01 am | 6:44:54 am | 7:02:23 pm | 7:28:16 pm | 12h 17m 29s | -2m -39s | 12:53:39 pm | 50.3° | 5:47:01 am | 8:00:17 pm | 5:14:21 am | 8:32:56 pm | 11h 43m 30s | 🌔 (63%) |
| Mon, Sep 21 | 6:20:01 am | 6:45:53 am | 7:00:42 pm | 7:26:34 pm | 12h 14m 49s | -2m -40s | 12:53:17 pm | 49.9° | 5:48:03 am | 7:58:32 pm | 5:15:28 am | 8:31:06 pm | 11h 46m 10s | 🌔 (72%) |
| Tue, Sep 22 | 6:21:00 am | 6:46:52 am | 6:59:01 pm | 7:24:52 pm | 12h 12m 9s | -2m -40s | 12:52:56 pm | 49.5° | 5:49:05 am | 7:56:47 pm | 5:16:35 am | 8:29:17 pm | 11h 48m 50s | 🌔 (80%) |
| Wed, Sep 23 | 6:22:00 am | 6:47:51 am | 6:57:19 pm | 7:23:10 pm | 12h 9m 28s | -2m -41s | 12:52:35 pm | 49.1° | 5:50:07 am | 7:55:03 pm | 5:17:41 am | 8:27:29 pm | 11h 51m 31s | 🌔 (87%) |
| Thu, Sep 24 | 6:23:00 am | 6:48:50 am | 6:55:39 pm | 7:21:29 pm | 12h 6m 49s | -2m -39s | 12:52:14 pm | 48.7° | 5:51:09 am | 7:53:19 pm | 5:18:48 am | 8:25:41 pm | 11h 54m 10s | 🌔 (93%) |
| Fri, Sep 25 | 6:23:59 am | 6:49:49 am | 6:53:58 pm | 7:19:47 pm | 12h 4m 9s | -2m -40s | 12:51:53 pm | 48.3° | 5:52:11 am | 7:51:36 pm | 5:19:53 am | 8:23:54 pm | 11h 56m 51s | 🌔 (98%) |
| Sat, Sep 26 | 6:24:59 am | 6:50:49 am | 6:52:17 pm | 7:18:06 pm | 12h 1m 28s | -2m -41s | 12:51:33 pm | 47.9° | 5:53:13 am | 7:49:53 pm | 5:20:59 am | 8:22:07 pm | 11h 59m 31s | 🌕 (100%) |
| Sun, Sep 27 | 6:25:59 am | 6:51:48 am | 6:50:37 pm | 7:16:26 pm | 11h 58m 49s | -2m -39s | 12:51:12 pm | 47.6° | 5:54:14 am | 7:48:11 pm | 5:22:04 am | 8:20:21 pm | 12h 2m 11s | 🌖 (100%) |
| Mon, Sep 28 | 6:26:59 am | 6:52:48 am | 6:48:57 pm | 7:14:46 pm | 11h 56m 9s | -2m -40s | 12:50:52 pm | 47.2° | 5:55:16 am | 7:46:29 pm | 5:23:08 am | 8:18:36 pm | 12h 4m 51s | 🌖 (97%) |
| Tue, Sep 29 | 6:27:59 am | 6:53:48 am | 6:47:17 pm | 7:13:06 pm | 11h 53m 29s | -2m -40s | 12:50:32 pm | 46.8° | 5:56:17 am | 7:44:48 pm | 5:24:13 am | 8:16:52 pm | 12h 7m 31s | 🌖 (92%) |
| Wed, Sep 30 | 6:28:59 am | 6:54:48 am | 6:45:37 pm | 7:11:26 pm | 11h 50m 49s | -2m -40s | 12:50:13 pm | 46.4° | 5:57:18 am | 7:43:07 pm | 5:25:17 am | 8:15:08 pm | 12h 10m 12s | 🌖 (85%) |
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Sunrise and Sunset photos in Fort Collins, CO
Enjoy this beautiful gallery of images of the sunset and sunrise at Fort Collins, CO. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Fort Collins, CO - 2026
The following graph shows sunrise and sunset times in Fort Collins, 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 Fort Collins, CO.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Fort Collins, CO
In Fort Collins, CO, the earliest sunrise of 2026 is on June 14 at 5:27 am, while the latest sunrise is on October 31 at 7:28 am. The earliest sunset is on December 8 at 4:34 pm, and the latest sunset is on June 27 at 8:36 pm.
Fort Collins, CO gets 5h 48m more daylight on the longest day than on the shortest one (15h 08m versus 9h 19m). Averaged over the whole year, a day lasts 12h 15m.
Fort Collins, CO Analemma
Due to Earth's tilted axis and slightly elliptical orbit, the Sun is never seen in the same position at noon in Fort Collins. 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 Fort Collins.
Over the year, the 12:00 Sun swings between just 26° above the horizon (around Dec 21) and 72.8° (around Jun 21) in Fort Collins. 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 Fort Collins, CO
These nearby towns and cities have almost the same sunrise and sunset times as Fort Collins, CO — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Timnath 6 miWellington 9 miWindsor 12 miSeverance 13 miLoveland 13 miLivermore 16 miPierce 18 miNunn 18 mi