Daylight
7:07 am – 4:35 pm
9 hours, 28 minutes
| Current Time: | Dec 5, 2025 at 7:12:49 am |
|---|---|
| Sun Direction: | ↑ 120° Southeast |
| Sun Altitude: | 0.4° |
| Sun Distance: | 91.601 million mi |
| Next Solstice: | Dec 21, 2025 8:03 am (Winter) |
| Sunrise Today: | 7:07 am↑ 119° Southeast |
| Sunset Today: | 4:35 pm↑ 241° Southwest |
2025 Sun Graph for Boulder
August 2025 — Sun in Boulder
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| 2025 | Sunrise/Sunset | Daylength | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug | Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Mil. mi |
| 1 | 5:59 am ↑ (66°) | 8:14 pm ↑ (294°) | 14:14:28 | −1:59 | 4:11 am | 10:02 pm | 4:52 am | 9:21 pm | 5:29 am | 8:44 pm | 1:07 pm (67.8°) | 94.337 |
| 2 | 6:00 am ↑ (66°) | 8:13 pm ↑ (294°) | 14:12:28 | −2:00 | 4:12 am | 10:00 pm | 4:53 am | 9:20 pm | 5:30 am | 8:43 pm | 1:07 pm (67.5°) | 94.324 |
| 3 | 6:01 am ↑ (66°) | 8:12 pm ↑ (293°) | 14:10:25 | −2:02 | 4:14 am | 9:59 pm | 4:54 am | 9:18 pm | 5:31 am | 8:42 pm | 1:07 pm (67.3°) | 94.311 |
| 4 | 6:02 am ↑ (67°) | 8:11 pm ↑ (293°) | 14:08:21 | −2:04 | 4:15 am | 9:57 pm | 4:55 am | 9:17 pm | 5:32 am | 8:40 pm | 1:07 pm (67.0°) | 94.298 |
| 5 | 6:03 am ↑ (67°) | 8:09 pm ↑ (293°) | 14:06:15 | −2:05 | 4:17 am | 9:55 pm | 4:57 am | 9:16 pm | 5:33 am | 8:39 pm | 1:07 pm (66.7°) | 94.285 |
| 6 | 6:04 am ↑ (67°) | 8:08 pm ↑ (292°) | 14:04:08 | −2:07 | 4:18 am | 9:54 pm | 4:58 am | 9:14 pm | 5:34 am | 8:38 pm | 1:06 pm (66.5°) | 94.271 |
| 7 | 6:05 am ↑ (68°) | 8:07 pm ↑ (292°) | 14:02:00 | −2:08 | 4:19 am | 9:52 pm | 4:59 am | 9:13 pm | 5:35 am | 8:37 pm | 1:06 pm (66.2°) | 94.256 |
| 8 | 6:06 am ↑ (68°) | 8:06 pm ↑ (292°) | 13:59:50 | −2:10 | 4:21 am | 9:50 pm | 5:00 am | 9:11 pm | 5:36 am | 8:35 pm | 1:06 pm (65.9°) | 94.242 |
| 9 | 6:07 am ↑ (69°) | 8:05 pm ↑ (291°) | 13:57:38 | −2:11 | 4:22 am | 9:49 pm | 5:01 am | 9:10 pm | 5:37 am | 8:34 pm | 1:06 pm (65.6°) | 94.227 |
| 10 | 6:08 am ↑ (69°) | 8:03 pm ↑ (291°) | 13:55:26 | −2:12 | 4:24 am | 9:47 pm | 5:02 am | 9:08 pm | 5:38 am | 8:33 pm | 1:06 pm (65.3°) | 94.212 |
| 11 | 6:09 am ↑ (69°) | 8:02 pm ↑ (290°) | 13:53:12 | −2:13 | 4:25 am | 9:45 pm | 5:04 am | 9:07 pm | 5:39 am | 8:31 pm | 1:06 pm (65.0°) | 94.197 |
| 12 | 6:10 am ↑ (70°) | 8:01 pm ↑ (290°) | 13:50:56 | −2:15 | 4:27 am | 9:43 pm | 5:05 am | 9:05 pm | 5:40 am | 8:30 pm | 1:06 pm (64.7°) | 94.182 |
| 13 | 6:11 am ↑ (70°) | 7:59 pm ↑ (290°) | 13:48:40 | −2:16 | 4:28 am | 9:42 pm | 5:06 am | 9:04 pm | 5:41 am | 8:28 pm | 1:05 pm (64.4°) | 94.166 |
| 14 | 6:12 am ↑ (71°) | 7:58 pm ↑ (289°) | 13:46:23 | −2:17 | 4:29 am | 9:40 pm | 5:07 am | 9:02 pm | 5:43 am | 8:27 pm | 1:05 pm (64.1°) | 94.150 |
| 15 | 6:13 am ↑ (71°) | 7:57 pm ↑ (289°) | 13:44:04 | −2:18 | 4:31 am | 9:38 pm | 5:08 am | 9:01 pm | 5:44 am | 8:26 pm | 1:05 pm (63.8°) | 94.134 |
| 16 | 6:14 am ↑ (71°) | 7:55 pm ↑ (288°) | 13:41:44 | −2:19 | 4:32 am | 9:36 pm | 5:10 am | 8:59 pm | 5:45 am | 8:24 pm | 1:05 pm (63.5°) | 94.117 |
| 17 | 6:15 am ↑ (72°) | 7:54 pm ↑ (288°) | 13:39:24 | −2:20 | 4:34 am | 9:34 pm | 5:11 am | 8:57 pm | 5:46 am | 8:23 pm | 1:05 pm (63.1°) | 94.100 |
| 18 | 6:15 am ↑ (72°) | 7:53 pm ↑ (287°) | 13:37:02 | −2:21 | 4:35 am | 9:33 pm | 5:12 am | 8:56 pm | 5:47 am | 8:21 pm | 1:04 pm (62.8°) | 94.083 |
| 19 | 6:16 am ↑ (73°) | 7:51 pm ↑ (287°) | 13:34:39 | −2:22 | 4:36 am | 9:31 pm | 5:13 am | 8:54 pm | 5:48 am | 8:20 pm | 1:04 pm (62.5°) | 94.065 |
| 20 | 6:17 am ↑ (73°) | 7:50 pm ↑ (287°) | 13:32:16 | −2:23 | 4:38 am | 9:29 pm | 5:14 am | 8:53 pm | 5:49 am | 8:18 pm | 1:04 pm (62.2°) | 94.047 |
| 21 | 6:18 am ↑ (74°) | 7:48 pm ↑ (286°) | 13:29:52 | −2:24 | 4:39 am | 9:27 pm | 5:15 am | 8:51 pm | 5:50 am | 8:17 pm | 1:04 pm (61.8°) | 94.029 |
| 22 | 6:19 am ↑ (74°) | 7:47 pm ↑ (286°) | 13:27:26 | −2:25 | 4:40 am | 9:25 pm | 5:17 am | 8:49 pm | 5:51 am | 8:15 pm | 1:03 pm (61.5°) | 94.010 |
| 23 | 6:20 am ↑ (75°) | 7:45 pm ↑ (285°) | 13:25:00 | −2:25 | 4:42 am | 9:23 pm | 5:18 am | 8:48 pm | 5:52 am | 8:14 pm | 1:03 pm (61.1°) | 93.990 |
| 24 | 6:21 am ↑ (75°) | 7:44 pm ↑ (285°) | 13:22:34 | −2:26 | 4:43 am | 9:21 pm | 5:19 am | 8:46 pm | 5:53 am | 8:12 pm | 1:03 pm (60.8°) | 93.970 |
| 25 | 6:22 am ↑ (75°) | 7:42 pm ↑ (284°) | 13:20:06 | −2:27 | 4:44 am | 9:20 pm | 5:20 am | 8:44 pm | 5:54 am | 8:10 pm | 1:03 pm (60.5°) | 93.950 |
| 26 | 6:23 am ↑ (76°) | 7:41 pm ↑ (284°) | 13:17:38 | −2:28 | 4:46 am | 9:18 pm | 5:21 am | 8:42 pm | 5:55 am | 8:09 pm | 1:02 pm (60.1°) | 93.929 |
| 27 | 6:24 am ↑ (76°) | 7:39 pm ↑ (283°) | 13:15:10 | −2:28 | 4:47 am | 9:16 pm | 5:22 am | 8:41 pm | 5:56 am | 8:07 pm | 1:02 pm (59.8°) | 93.908 |
| 28 | 6:25 am ↑ (77°) | 7:38 pm ↑ (283°) | 13:12:40 | −2:29 | 4:48 am | 9:14 pm | 5:23 am | 8:39 pm | 5:57 am | 8:06 pm | 1:02 pm (59.4°) | 93.887 |
| 29 | 6:26 am ↑ (77°) | 7:36 pm ↑ (282°) | 13:10:10 | −2:29 | 4:50 am | 9:12 pm | 5:25 am | 8:37 pm | 5:58 am | 8:04 pm | 1:01 pm (59.0°) | 93.865 |
| 30 | 6:27 am ↑ (78°) | 7:35 pm ↑ (282°) | 13:07:40 | −2:30 | 4:51 am | 9:10 pm | 5:26 am | 8:36 pm | 5:59 am | 8:02 pm | 1:01 pm (58.7°) | 93.843 |
| 31 | 6:28 am ↑ (78°) | 7:33 pm ↑ (281°) | 13:05:09 | −2:30 | 4:52 am | 9:08 pm | 5:27 am | 8:34 pm | 6:00 am | 8:01 pm | 1:01 pm (58.3°) | 93.821 |
| * All times are local time for Boulder. Time is adjusted for DST when applicable. They take into account refraction. Dates are based on the Gregorian calendar. | ||||||||||||
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