Sunrise and sunset times in Thermopolis, WY
EditCheck out today's and tomorrow's sunrise and sunset times in Thermopolis, as well as the whole calendar for October 2026.
Clocks go back one hour this Sunday, November 1, at 2:00 am (MDT → MST). From Sunday, sunrise and sunset come an hour earlier on the clock.
Today
October 26, 2026. Current time: 6:12:07 pm
Night ends at 6:05 am6:04:41 am
Start of astronomical twilight: the Sun is 18° below the horizon and the sky begins to brighten, too faintly to notice in a city.·First light at 7:12 am7:11:33 am
Start of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.
Sunrise time: 7:41:02 am MDTWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley).
Sunset time: 6:11:50 pm MDTWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley).
Dark at 6:41 pm6:41:18 pm
End of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.·Night at 7:48 pm7:48:04 pm
End of astronomical twilight: the Sun is 18° below the horizon and the sky is dark enough to see the faintest stars. In a city it looks dark sooner.
Sun position chart
Now · Sun altitude: -0.87° (below the horizon) · Azimuth: 253.2° (W)
Daylight Golden Hour Dawn & dusk (civil twilight) Night
Day length: 10 hours, 30 minutes
Sunset in Thermopolis was 17 seconds ago
Moon set on Oct 26 at 8:28 am
Moon rose on Oct 26 at 6:10 pmMoon phase: 🌖 Waning Gibbous (99%)🌑 New moon: Nov 9 at 12:02 am · 🌕 Full moon: Nov 24 at 7:53 amTomorrow
October 27, 2026
Night ends at 6:06 am6:05:51 am
Start of astronomical twilight: the Sun is 18° below the horizon and the sky begins to brighten, too faintly to notice in a city.·First light at 7:13 am7:12:46 am
Start of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.
Sunrise time: 7:42:19 am MDTWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley).
Sunset time: 6:10:22 pm MDTWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley).
Dark at 6:40 pm6:39:54 pm
End of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.·Night at 7:47 pm7:46:44 pm
End of astronomical twilight: the Sun is 18° below the horizon and the sky is dark enough to see the faintest stars. In a city it looks dark sooner.
Day length: 10 hours, 28 minutes
Tomorrow will be 3 minutes shorter than today in Thermopolis
Moon will set on Oct 27 at 9:49 am Moon will rise on Oct 27 at 6:49 pmMoon phase: 🌖 Waning Gibbous (94%)
- Thermopolis, Wyoming
- Latitude: 43.646069 (North)
- Longitude: -108.212044 (West)
- Time zone: Mountain Daylight Time (MDT, UTC−6)
Shortest day in Thermopolis, WY
The shortest day of the year will be in 1 month and 25 days, during the winter solstice on December 21, 2026, with a daylight length of 8 hours, 55 minutes.Longest day in Thermopolis, WY
The longest day of the year was around 4 months ago, during the summer solstice on June 21, 2026, with a daylight length of 15 hours, 26 minutes.
October 2026 - Thermopolis, Wyoming - 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 October in Thermopolis.
All times are in Thermopolis's time: Mountain Daylight Time (MDT, UTC−6).
The day length shortens by 1 hour, 25 minutes over the course of October 2026 in Thermopolis, WY - from 11 hours, 42 minutes on the first day to 10 hours, 17 minutes on the last day.
| Day | First LightStart of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light. | SunriseWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley). | Sunrise Variation |
SunsetWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley). | Sunset Variation |
Last LightEnd of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors. | Day Length | Day Length Variation | Solar NoonTime 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 LengthCalculated from this day's sunset to the next day's sunrise. | Moon phase | Solar Midnight | Sun DeclinationThe latitude where the Sun is directly overhead at solar noon (the Sun's declination). It moves between the two tropics through the year. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu, Oct 1 | Twilight startStart of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.6:41:59 am | 7:10:35 am | +1m 9s | 6:53:33 pm | -1m 48s | Twilight endEnd of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.7:22:05 pm | 11h 42m 58s | -2m 58s | Solar noonTime of day when the sun reaches its highest point in the sky.1:02:25 pm | 42.94° | 6:08:41 am | 7:55:18 pm | 5:34:58 am | 8:28:55 pm | Night lengthCalculated from this day's sunset to the next day's sunrise.12h 18m 12s | 🌖 (65%)Waning Gibbous: 65% illuminated at midnight, at the end of the day | 1:02:35 am | 3.4° S |
| Fri, Oct 2 | 6:43:08 am | 7:11:45 am | +1m 10s | 6:51:45 pm | -1m 48s | 7:20:18 pm | 11h 40m 0s | -2m 58s | 1:02:06 pm | 42.55° | 6:09:52 am | 7:53:29 pm | 5:36:12 am | 8:27:03 pm | 12h 21m 10s | 🌖 (54%)Waning Gibbous: 54% illuminated at midnight, at the end of the day | 1:02:16 am | 3.8° S |
| Sat, Oct 3 | 6:44:18 am | 7:12:55 am | +1m 10s | 6:49:57 pm | -1m 48s | 7:18:31 pm | 11h 37m 2s | -2m 57s | 1:01:47 pm | 42.16° | 6:11:02 am | 7:51:42 pm | 5:37:26 am | 8:25:12 pm | 12h 24m 8s | 🌗 (42%) Last quarter at 7:25 amLast quarter at 7:25 am. At midnight, at the end of the day: 42% illuminated |
1:01:56 am | 4.2° S |
| Sun, Oct 4 | 6:45:27 am | 7:14:05 am | +1m 10s | 6:48:10 pm | -1m 47s | 7:16:45 pm | 11h 34m 5s | -2m 57s | 1:01:29 pm | 41.78° | 6:12:13 am | 7:49:55 pm | 5:38:39 am | 8:23:23 pm | 12h 27m 5s | 🌘 (31%)Waning Crescent: 31% illuminated at midnight, at the end of the day | 1:01:38 am | 4.6° S |
| Mon, Oct 5 | 6:46:36 am | 7:15:15 am | +1m 10s | 6:46:23 pm | -1m 47s | 7:14:59 pm | 11h 31m 8s | -2m 57s | 1:01:11 pm | 41.39° | 6:13:23 am | 7:48:08 pm | 5:39:52 am | 8:21:34 pm | 12h 30m 3s | 🌘 (21%)Waning Crescent: 21% illuminated at midnight, at the end of the day | 1:01:20 am | 5.0° S |
| Tue, Oct 6 | 6:47:46 am | 7:16:26 am | +1m 11s | 6:44:37 pm | -1m 46s | 7:13:14 pm | 11h 28m 11s | -2m 57s | 1:00:53 pm | 41.01° | 6:14:33 am | 7:46:23 pm | 5:41:05 am | 8:19:46 pm | 12h 33m 0s | 🌘 (13%)Waning Crescent: 13% illuminated at midnight, at the end of the day | 1:01:02 am | 5.3° S |
| Wed, Oct 7 | 6:48:56 am | 7:17:37 am | +1m 11s | 6:42:52 pm | -1m 45s | 7:11:30 pm | 11h 25m 15s | -2m 57s | 1:00:35 pm | 40.63° | 6:15:43 am | 7:44:38 pm | 5:42:17 am | 8:17:59 pm | 12h 35m 56s | 🌘 (7%)Waning Crescent: 7% illuminated at midnight, at the end of the day | 1:00:44 am | 5.7° S |
| Thu, Oct 8 | 6:50:06 am | 7:18:48 am | +1m 11s | 6:41:07 pm | -1m 45s | 7:09:46 pm | 11h 22m 19s | -2m 56s | 1:00:18 pm | 40.25° | 6:16:53 am | 7:42:55 pm | 5:43:29 am | 8:16:13 pm | 12h 38m 53s | 🌘 (2%)Waning Crescent: 2% illuminated at midnight, at the end of the day | 1:00:26 am | 6.1° S |
| Fri, Oct 9 | 6:51:16 am | 7:20:00 am | +1m 12s | 6:39:22 pm | -1m 45s | 7:08:03 pm | 11h 19m 22s | -2m 56s | 1:00:02 pm | 39.87° | 6:18:03 am | 7:41:12 pm | 5:44:41 am | 8:14:29 pm | 12h 41m 49s | 🌘 (0.3%)Waning Crescent: 0.3% illuminated at midnight, at the end of the day | 1:00:10 am | 6.5° S |
| Sat, Oct 10 | 6:52:26 am | 7:21:11 am | +1m 11s | 6:37:38 pm | -1m 44s | 7:06:21 pm | 11h 16m 27s | -2m 56s | 12:59:46 pm | 39.49° | 6:19:13 am | 7:39:30 pm | 5:45:53 am | 8:12:45 pm | 12h 44m 46s | 🌑 (1%) New moon at 9:50 amNew moon at 9:50 am. At midnight, at the end of the day: 1% illuminated |
12:59:54 am | 6.9° S |
| Sun, Oct 11 | 6:53:36 am | 7:22:24 am | +1m 13s | 6:35:55 pm | -1m 43s | 7:04:40 pm | 11h 13m 31s | -2m 55s | 12:59:30 pm | 39.11° | 6:20:23 am | 7:37:49 pm | 5:47:05 am | 8:11:03 pm | 12h 47m 41s | 🌒 (3%)Waxing Crescent: 3% illuminated at midnight, at the end of the day | 12:59:38 am | 7.2° S |
| Mon, Oct 12 | 6:54:47 am | 7:23:36 am | +1m 12s | 6:34:13 pm | -1m 42s | 7:02:59 pm | 11h 10m 37s | -2m 55s | 12:59:15 pm | 38.74° | 6:21:33 am | 7:36:09 pm | 5:48:16 am | 8:09:22 pm | 12h 50m 36s | 🌒 (7%)Waxing Crescent: 7% illuminated at midnight, at the end of the day | 12:59:23 am | 7.6° S |
| Tue, Oct 13 | 6:55:58 am | 7:24:49 am | +1m 13s | 6:32:31 pm | -1m 42s | 7:01:20 pm | 11h 7m 42s | -2m 54s | 12:59:00 pm | 38.36° | 6:22:43 am | 7:34:30 pm | 5:49:27 am | 8:07:42 pm | 12h 53m 31s | 🌒 (13%)Waxing Crescent: 13% illuminated at midnight, at the end of the day | 12:59:07 am | 8.0° S |
| Wed, Oct 14 | 6:57:08 am | 7:26:02 am | +1m 13s | 6:30:50 pm | -1m 41s | 6:59:41 pm | 11h 4m 48s | -2m 54s | 12:58:46 pm | 37.99° | 6:23:53 am | 7:32:52 pm | 5:50:38 am | 8:06:03 pm | 12h 56m 25s | 🌒 (20%)Waxing Crescent: 20% illuminated at midnight, at the end of the day | 12:58:53 am | 8.4° S |
| Thu, Oct 15 | 6:58:19 am | 7:27:15 am | +1m 13s | 6:29:10 pm | -1m 40s | 6:58:03 pm | 11h 1m 55s | -2m 54s | 12:58:32 pm | 37.62° | 6:25:03 am | 7:31:16 pm | 5:51:49 am | 8:04:26 pm | 12h 59m 19s | 🌒 (28%)Waxing Crescent: 28% illuminated at midnight, at the end of the day | 12:58:39 am | 8.7° S |
| Fri, Oct 16 | 6:59:31 am | 7:28:29 am | +1m 14s | 6:27:30 pm | -1m 40s | 6:56:26 pm | 10h 59m 1s | -2m 53s | 12:58:19 pm | 37.25° | 6:26:14 am | 7:29:40 pm | 5:53:00 am | 8:02:49 pm | 13h 2m 13s | 🌒 (37%)Waxing Crescent: 37% illuminated at midnight, at the end of the day | 12:58:25 am | 9.1° S |
| Sat, Oct 17 | 7:00:42 am | 7:29:43 am | +1m 14s | 6:25:52 pm | -1m 38s | 6:54:50 pm | 10h 56m 9s | -2m 52s | 12:58:07 pm | 36.89° | 6:27:24 am | 7:28:06 pm | 5:54:11 am | 8:01:15 pm | 13h 5m 5s | 🌒 (46%)Waxing Crescent: 46% illuminated at midnight, at the end of the day | 12:58:13 am | 9.5° S |
| Sun, Oct 18 | 7:01:54 am | 7:30:57 am | +1m 14s | 6:24:14 pm | -1m 38s | 6:53:15 pm | 10h 53m 17s | -2m 52s | 12:57:55 pm | 36.53° | 6:28:34 am | 7:26:32 pm | 5:55:21 am | 7:59:41 pm | 13h 7m 58s | 🌓 (56%) First quarter at 10:12 amFirst quarter at 10:12 am. At midnight, at the end of the day: 56% illuminated |
12:58:01 am | 9.8° S |
| Mon, Oct 19 | 7:03:05 am | 7:32:12 am | +1m 15s | 6:22:37 pm | -1m 37s | 6:51:42 pm | 10h 50m 25s | -2m 51s | 12:57:44 pm | 36.16° | 6:29:44 am | 7:25:00 pm | 5:56:32 am | 7:58:09 pm | 13h 10m 50s | 🌔 (65%)Waxing Gibbous: 65% illuminated at midnight, at the end of the day | 12:57:50 am | 10.2° S |
| Tue, Oct 20 | 7:04:17 am | 7:33:27 am | +1m 15s | 6:21:02 pm | -1m 35s | 6:50:09 pm | 10h 47m 35s | -2m 51s | 12:57:33 pm | 35.81° | 6:30:54 am | 7:23:29 pm | 5:57:42 am | 7:56:38 pm | 13h 13m 40s | 🌔 (74%)Waxing Gibbous: 74% illuminated at midnight, at the end of the day | 12:57:38 am | 10.5° S |
| Wed, Oct 21 | 7:05:29 am | 7:34:42 am | +1m 15s | 6:19:27 pm | -1m 35s | 6:48:37 pm | 10h 44m 45s | -2m 50s | 12:57:23 pm | 35.45° | 6:32:04 am | 7:22:00 pm | 5:58:52 am | 7:55:09 pm | 13h 16m 30s | 🌔 (82%)Waxing Gibbous: 82% illuminated at midnight, at the end of the day | 12:57:28 am | 10.9° S |
| Thu, Oct 22 | 7:06:42 am | 7:35:57 am | +1m 15s | 6:17:53 pm | -1m 34s | 6:47:07 pm | 10h 41m 56s | -2m 49s | 12:57:14 pm | 35.10° | 6:33:15 am | 7:20:31 pm | 6:00:02 am | 7:53:41 pm | 13h 19m 20s | 🌔 (90%)Waxing Gibbous: 90% illuminated at midnight, at the end of the day | 12:57:18 am | 11.3° S |
| Fri, Oct 23 | 7:07:54 am | 7:37:13 am | +1m 16s | 6:16:21 pm | -1m 32s | 6:45:38 pm | 10h 39m 8s | -2m 48s | 12:57:06 pm | 34.75° | 6:34:25 am | 7:19:04 pm | 6:01:12 am | 7:52:14 pm | 13h 22m 8s | 🌔 (95%)Waxing Gibbous: 95% illuminated at midnight, at the end of the day | 12:57:10 am | 11.6° S |
| Sat, Oct 24 | 7:09:07 am | 7:38:29 am | +1m 16s | 6:14:49 pm | -1m 32s | 6:44:10 pm | 10h 36m 20s | -2m 48s | 12:56:58 pm | 34.40° | 6:35:36 am | 7:17:39 pm | 6:02:22 am | 7:50:50 pm | 13h 24m 57s | 🌔 (99%)Waxing Gibbous: 99% illuminated at midnight, at the end of the day | 12:57:02 am | 12.0° S |
| Sun, Oct 25 | 7:10:20 am | 7:39:46 am | +1m 17s | 6:13:19 pm | -1m 30s | 6:42:43 pm | 10h 33m 33s | -2m 47s | 12:56:51 pm | 34.06° | 6:36:46 am | 7:16:15 pm | 6:03:32 am | 7:49:26 pm | 13h 27m 43s | 🌕 (99.8%) Full moon at 10:11 pmFull moon at 10:11 pm. At midnight, at the end of the day: 99.8% illuminated |
12:56:55 am | 12.3° S |
| Mon, Oct 26 | 7:11:33 am | 7:41:02 am | +1m 16s | 6:11:50 pm | -1m 29s | 6:41:18 pm | 10h 30m 48s | -2m 46s | 12:56:44 pm | 33.72° | 6:37:57 am | 7:14:52 pm | 6:04:41 am | 7:48:04 pm | 13h 30m 29s | 🌖 (98%)Waning Gibbous: 98% illuminated at midnight, at the end of the day | 12:56:47 am | 12.6° S |
| Tue, Oct 27 | 7:12:46 am | 7:42:19 am | +1m 17s | 6:10:22 pm | -1m 28s | 6:39:54 pm | 10h 28m 3s | -2m 45s | 12:56:39 pm | 33.38° | 6:39:07 am | 7:13:31 pm | 6:05:51 am | 7:46:44 pm | 13h 33m 15s | 🌖 (94%)Waning Gibbous: 94% illuminated at midnight, at the end of the day | 12:56:42 am | 13.0° S |
| Wed, Oct 28 | 7:13:59 am | 7:43:37 am | +1m 18s | 6:08:56 pm | -1m 26s | 6:38:31 pm | 10h 25m 19s | -2m 44s | 12:56:34 pm | 33.04° | 6:40:18 am | 7:12:11 pm | 6:07:00 am | 7:45:26 pm | 13h 35m 58s | 🌖 (87%)Waning Gibbous: 87% illuminated at midnight, at the end of the day | 12:56:36 am | 13.3° S |
| Thu, Oct 29 | 7:15:13 am | 7:44:54 am | +1m 17s | 6:07:31 pm | -1m 25s | 6:37:10 pm | 10h 22m 37s | -2m 43s | 12:56:30 pm | 32.71° | 6:41:28 am | 7:10:53 pm | 6:08:10 am | 7:44:09 pm | 13h 38m 41s | 🌖 (78%)Waning Gibbous: 78% illuminated at midnight, at the end of the day | 12:56:32 am | 13.6° S |
| Fri, Oct 30 | 7:16:27 am | 7:46:12 am | +1m 18s | 6:06:07 pm | -1m 24s | 6:35:50 pm | 10h 19m 55s | -2m 42s | 12:56:27 pm | 32.38° | 6:42:39 am | 7:09:36 pm | 6:09:19 am | 7:42:53 pm | 13h 41m 23s | 🌖 (68%)Waning Gibbous: 68% illuminated at midnight, at the end of the day | 12:56:29 am | 14.0° S |
| Sat, Oct 31 | 7:17:40 am | 7:47:30 am | +1m 18s | 6:04:44 pm | -1m 23s | 6:34:32 pm | 10h 17m 14s | -2m 40s | 12:56:24 pm | 32.06° | 6:43:50 am | 7:08:21 pm | 6:10:28 am | 7:41:40 pm | 13h 44m 4s | 🌖 (57%)Waning Gibbous: 57% illuminated at midnight, at the end of the day | 12:56:25 am | 14.3° S |
Got a cool idea? 💡 Found any errors? 🤦
We're always improving this website!
Year distribution of sunrise and sunset times in Thermopolis, WY - 2026
The following graph shows sunrise and sunset times in Thermopolis, WY for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Thermopolis, WY.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Thermopolis, WY
In Thermopolis, WY, the earliest sunrise of 2026 is on June 15 at 5:30 am, while the latest sunrise is on October 31 at 7:47 am. The earliest sunset is on December 9 at 4:35 pm, and the latest sunset is on June 26 at 8:58 pm.
Thermopolis, WY gets 6h 30m more daylight on the longest day than on the shortest one (15h 26m versus 8h 55m). Averaged over the whole year, a day lasts 12h 13m.
Thermopolis, WY Analemma
Due to Earth's tilted axis and slightly elliptical orbit, the Sun is never seen in the same position at noon in Thermopolis. 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 Thermopolis.
Over the year, the 12:00 Sun swings between just 22.9° above the horizon (around Dec 21) and 69.6° (around Jun 21) in Thermopolis. 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 Thermopolis, WY
These nearby towns and cities have almost the same sunrise and sunset times as Thermopolis, WY — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
East Thermopolis 1 miKirby 11 miWorland 29 miShoshoni 29 miPavillion 37 miRiverton 44 miManderson 45 miTen Sleep 46 mi
Eswatini
Lesotho
Puerto Rico