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What time is sunrise and sunset in Thermopolis?

Today and tomorrow's sunrise and sunset times in Thermopolis, Wyoming. Plus a monthly calendar with dawn, dusk, solar noon, and day length.

Today

Sunrise
6:45 AM
110° ESEDawn 6:15 AM

Sunrise in Thermopolis will be at 6:45:17 AM MST (in 2h 28m).

Sunset
5:07 PM
250° WSWDusk 5:36 PM

Sunset in Thermopolis will be at 5:07:02 PM MST (in 12h 49m).

Now
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Night now · First light at 5:08 AM

Golden hour and blue hour in Thermopolis
WindowMorningEvening
Golden hour6:26 – 7:26 AM4:25 – 5:25 PM
Blue hour6:15 – 6:26 AM5:25 – 5:36 PM
Daylight
10h 21m
−2m 33s vs. yesterday
Darkness
10h 38m
Solar noon
11:56 AM
Sun altitude
27.9° below
Sun direction
84° E
How long golden hour and blue hour last

Tomorrow

Sunrise
6:46 AM
110° ESEDawn 6:16 AM

Sunrise in Thermopolis will be at 6:46:34 AM MST (in 26h 29m).

Sunset
5:05 PM
250° WSWDusk 5:35 PM

Sunset in Thermopolis will be at 5:05:48 PM MST (in 36h 48m).

Moon tonight

Phase, moonrise and moonset in Thermopolis

Waning Crescent
20% illuminated
Moonrise
1:57 AM
Moonset
2:45 PM

Calendar

Mountain Time · select a day to expand

DateSunriseSunsetLength
1 Sun6:41 AM5:10 PM10h 29m
2 Mon6:42 AM5:09 PM10h 26m
3 Tue6:43 AM5:08 PM10h 24m
4 Wed6:45 AM5:07 PM10h 21m
Wednesday, November 4
10h 21m 45s of daylight·−2m 32s vs. yesterday·twilight 6:15 AM – 5:36 PM
12a3a6a9a12p3p6p9p12a6:45 AM11:56 AM5:07 PMhorizon
Time
4:18 AM
Altitude
-27.8°
Heading
85° E
Light
Night

4:18 AM, Night, altitude -27.8 degrees

5 Thu6:46 AM5:05 PM10h 19m
6 Fri6:47 AM5:04 PM10h 16m
7 Sat6:49 AM5:03 PM10h 14m
8 Sun6:50 AM5:02 PM10h 11m
9 Mon6:51 AM5:01 PM10h 09m
10 Tue6:53 AM5:00 PM10h 07m
11 Wed6:54 AM4:59 PM10h 04m
12 Thu6:55 AM4:58 PM10h 02m
13 Fri6:56 AM4:57 PM10h 00m
14 Sat6:58 AM4:56 PM9h 57m
15 Sun6:59 AM4:55 PM9h 55m
16 Mon7:00 AM4:54 PM9h 53m
17 Tue7:01 AM4:53 PM9h 51m
18 Wed7:03 AM4:52 PM9h 49m
19 Thu7:04 AM4:51 PM9h 47m
20 Fri7:05 AM4:51 PM9h 45m
21 Sat7:06 AM4:50 PM9h 43m
22 Sun7:08 AM4:49 PM9h 41m
23 Mon7:09 AM4:48 PM9h 39m
24 Tue7:10 AM4:48 PM9h 37m
25 Wed7:11 AM4:47 PM9h 36m
26 Thu7:12 AM4:47 PM9h 34m
27 Fri7:14 AM4:46 PM9h 32m
28 Sat7:15 AM4:46 PM9h 31m
29 Sun7:16 AM4:45 PM9h 29m
30 Mon7:17 AM4:45 PM9h 28m

FAQ

Frequently asked questions about sunrise and sunset in Thermopolis, United States

What time does the sun rise in Thermopolis today?
Sunrise in Thermopolis today (Wednesday, November 4, 2026) is at 6:45 AM. The sun comes up in the ESE.
What time does the sun set in Thermopolis today?
Sunset today is at 5:07 PM, after 10h 21m of daylight.
When does it get dark in Thermopolis tonight?
Civil twilight ends at 5:36 PM. After that you need artificial light for most things outdoors. Astronomical twilight ends at 6:44 PM, which is when night starts by the standard definition.How long after sunset it gets dark
When is the longest day in Thermopolis, United States?
The longest day of 2026 in Thermopolis is Sunday, June 21, 2026, the summer solstice, with 15h 26m of daylight. In 2027 the summer solstice falls on June 21, 2027.More on the summer solstice
When is the shortest day in Thermopolis, United States?
The shortest day of 2026 in Thermopolis, Wyoming is Monday, December 21, 2026, the winter solstice, with 8h 55m of daylight. In 2027 the winter solstice lands on December 21, 2027.
How much more daylight does Thermopolis get in summer than in winter?
Thermopolis gets 6h 30m more daylight on its longest day than on its shortest (15h 26m against 8h 55m). Averaged across the year, a day here has 12h 13m of daylight.
When is the earliest sunrise in Thermopolis?
The earliest sunrise of 2026 in Thermopolis is on Sunday, June 14, 2026, when the sun comes up at 5:22 AM.
When is the latest sunset in Thermopolis?
The latest sunset is on Friday, June 26, 2026 at 8:58 PM.
When is the earliest sunset in Thermopolis?
The earliest sunset of the year is on Tuesday, December 8, 2026, with the sun down by 4:44 PM.Why it comes before the shortest day
When is the latest sunrise in Thermopolis?
The latest sunrise is on Saturday, October 31, 2026 at 7:40 AM.
Does Thermopolis observe daylight saving time?
Yes. Thermopolis uses Mountain Time: clocks go forward on March 8, 2026, then back on November 1, 2026. Sunrise and sunset times jump by an hour on those dates.

Developers: get this data programmatically with the free JSON API.

GET https://api.sunrisesunset.io/json?lat=43.64607&lng=-108.21204