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Thermopolis, Wyoming, USA — Sunrise, Sunset, and Daylength, September 2025

Daylight

6:47 am – 7:31 pm
12 hours, 44 minutes

Current Time: Sep 10, 2025 at 10:56:18 am
Sun Direction: 133° Southeast
Sun Altitude: 41.2°
Sun Distance: 150.620 million km
Next Equinox: Sep 22, 2025 12:19 pm (Autumnal)
Sunrise Today: 6:47 am 83° East
Sunset Today: 7:31 pm 277° West

2025 Sun Graph for Thermopolis

September 2025 — Sun in Thermopolis

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2025 Sunrise/Sunset Daylength Astronomical Twilight Nautical Twilight Civil Twilight Solar Noon
Sep Sunrise Sunset Length Diff. Start End Start End Start End Time Mil. km
1 6:37 am (78°) 7:47 pm (282°) 13:10:32 −2:52 4:54 am 9:29 pm 5:32 am 8:52 pm 6:07 am 8:17 pm 1:12 pm (54.3°) 150.953
2 6:38 am (79°) 7:45 pm (281°) 13:07:39 −2:52 4:56 am 9:27 pm 5:33 am 8:50 pm 6:08 am 8:15 pm 1:12 pm (54.0°) 150.916
3 6:39 am (79°) 7:44 pm (281°) 13:04:46 −2:53 4:57 am 9:25 pm 5:34 am 8:48 pm 6:09 am 8:13 pm 1:12 pm (53.6°) 150.879
4 6:40 am (80°) 7:42 pm (280°) 13:01:52 −2:53 4:59 am 9:23 pm 5:35 am 8:46 pm 6:11 am 8:11 pm 1:11 pm (53.2°) 150.842
5 6:41 am (80°) 7:40 pm (280°) 12:58:58 −2:54 5:00 am 9:20 pm 5:37 am 8:44 pm 6:12 am 8:09 pm 1:11 pm (52.9°) 150.805
6 6:42 am (81°) 7:38 pm (279°) 12:56:03 −2:54 5:02 am 9:18 pm 5:38 am 8:42 pm 6:13 am 8:07 pm 1:11 pm (52.5°) 150.767
7 6:43 am (81°) 7:36 pm (279°) 12:53:08 −2:54 5:03 am 9:16 pm 5:39 am 8:40 pm 6:14 am 8:05 pm 1:10 pm (52.1°) 150.729
8 6:44 am (82°) 7:35 pm (278°) 12:50:13 −2:55 5:04 am 9:14 pm 5:41 am 8:38 pm 6:15 am 8:04 pm 1:10 pm (51.7°) 150.692
9 6:45 am (82°) 7:33 pm (278°) 12:47:17 −2:55 5:06 am 9:12 pm 5:42 am 8:36 pm 6:16 am 8:02 pm 1:09 pm (51.4°) 150.654
10 6:47 am (83°) 7:31 pm (277°) 12:44:22 −2:55 5:07 am 9:10 pm 5:43 am 8:34 pm 6:18 am 8:00 pm 1:09 pm (51.0°) 150.616
11 6:48 am (83°) 7:29 pm (277°) 12:41:25 −2:56 5:09 am 9:08 pm 5:44 am 8:32 pm 6:19 am 7:58 pm 1:09 pm (50.6°) 150.577
12 6:49 am (84°) 7:27 pm (276°) 12:38:29 −2:56 5:10 am 9:06 pm 5:46 am 8:30 pm 6:20 am 7:56 pm 1:08 pm (50.2°) 150.539
13 6:50 am (84°) 7:25 pm (275°) 12:35:32 −2:56 5:11 am 9:04 pm 5:47 am 8:28 pm 6:21 am 7:54 pm 1:08 pm (49.8°) 150.501
14 6:51 am (85°) 7:24 pm (275°) 12:32:35 −2:56 5:13 am 9:02 pm 5:48 am 8:26 pm 6:22 am 7:52 pm 1:08 pm (49.5°) 150.462
15 6:52 am (85°) 7:22 pm (274°) 12:29:38 −2:57 5:14 am 8:59 pm 5:49 am 8:24 pm 6:23 am 7:51 pm 1:07 pm (49.1°) 150.423
16 6:53 am (86°) 7:20 pm (274°) 12:26:41 −2:57 5:15 am 8:57 pm 5:51 am 8:23 pm 6:24 am 7:49 pm 1:07 pm (48.7°) 150.383
17 6:54 am (86°) 7:18 pm (273°) 12:23:43 −2:57 5:17 am 8:55 pm 5:52 am 8:21 pm 6:26 am 7:47 pm 1:07 pm (48.3°) 150.343
18 6:56 am (87°) 7:16 pm (273°) 12:20:45 −2:57 5:18 am 8:53 pm 5:53 am 8:19 pm 6:27 am 7:45 pm 1:06 pm (47.9°) 150.303
19 6:57 am (87°) 7:14 pm (272°) 12:17:47 −2:57 5:19 am 8:51 pm 5:54 am 8:17 pm 6:28 am 7:43 pm 1:06 pm (47.5°) 150.263
20 6:58 am (88°) 7:13 pm (272°) 12:14:49 −2:57 5:21 am 8:49 pm 5:55 am 8:15 pm 6:29 am 7:41 pm 1:06 pm (47.1°) 150.222
21 6:59 am (89°) 7:11 pm (271°) 12:11:51 −2:58 5:22 am 8:47 pm 5:57 am 8:13 pm 6:30 am 7:39 pm 1:05 pm (46.7°) 150.181
22 7:00 am (89°) 7:09 pm (271°) 12:08:53 −2:58 5:23 am 8:45 pm 5:58 am 8:11 pm 6:31 am 7:38 pm 1:05 pm (46.4°) 150.139
23 7:01 am (90°) 7:07 pm (270°) 12:05:55 −2:58 5:25 am 8:43 pm 5:59 am 8:09 pm 6:33 am 7:36 pm 1:05 pm (46.0°) 150.097
24 7:02 am (90°) 7:05 pm (270°) 12:02:57 −2:58 5:26 am 8:41 pm 6:00 am 8:07 pm 6:34 am 7:34 pm 1:04 pm (45.6°) 150.055
25 7:03 am (91°) 7:03 pm (269°) 11:59:59 −2:58 5:27 am 8:39 pm 6:01 am 8:05 pm 6:35 am 7:32 pm 1:04 pm (45.2°) 150.012
26 7:05 am (91°) 7:02 pm (268°) 11:57:01 −2:58 5:29 am 8:37 pm 6:03 am 8:04 pm 6:36 am 7:30 pm 1:03 pm (44.8°) 149.969
27 7:06 am (92°) 7:00 pm (268°) 11:54:03 −2:58 5:30 am 8:36 pm 6:04 am 8:02 pm 6:37 am 7:28 pm 1:03 pm (44.4°) 149.926
28 7:07 am (92°) 6:58 pm (267°) 11:51:05 −2:57 5:31 am 8:34 pm 6:05 am 8:00 pm 6:38 am 7:27 pm 1:03 pm (44.0°) 149.883
29 7:08 am (93°) 6:56 pm (267°) 11:48:07 −2:57 5:32 am 8:32 pm 6:06 am 7:58 pm 6:39 am 7:25 pm 1:02 pm (43.6°) 149.839
30 7:09 am (93°) 6:54 pm (266°) 11:45:09 −2:57 5:34 am 8:30 pm 6:07 am 7:56 pm 6:41 am 7:23 pm 1:02 pm (43.2°) 149.796
* All times are local time for Thermopolis. Time is adjusted for DST when applicable. They take into account refraction. Dates are based on the Gregorian calendar. Today is highlighted.

The September equinox (autumnal equinox) in Thermopolis is at 12:19 pm on Monday, September 22, 2025.
Why is the day and night not exactly 12 hours on equinox?

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