Sunrise and sunset in Boulder: December , 2025
| Time of sunrise: | 07:22 | |
| Time of sunset: | 16:42 | |
| Time of moonrise: | 11:17 | |
| Time of moonset: | 23:35 | |
| Day length: | 9 h. 20 min. | |
Table below shows sunrise and sunset data for the next several days. You can pick any time interval to get more data.
Interval:
-
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| 17.12.2025 | 07:18 | 16:37 | 9 h. 19 min. |
| 18.12.2025 | 07:18 | 16:38 | 9 h. 20 min. |
| 19.12.2025 | 07:19 | 16:38 | 9 h. 19 min. |
| 20.12.2025 | 07:19 | 16:39 | 9 h. 20 min. |
| 21.12.2025 | 07:20 | 16:39 | 9 h. 19 min. |
| 22.12.2025 | 07:20 | 16:40 | 9 h. 20 min. |
| 23.12.2025 | 07:21 | 16:40 | 9 h. 19 min. |
| 24.12.2025 | 07:21 | 16:41 | 9 h. 20 min. |
| 25.12.2025 | 07:22 | 16:41 | 9 h. 19 min. |
| 26.12.2025 | 07:22 | 16:42 | 9 h. 20 min. |
| 27.12.2025 | 07:22 | 16:43 | 9 h. 21 min. |
| 28.12.2025 | 07:23 | 16:43 | 9 h. 20 min. |
| 29.12.2025 | 07:23 | 16:44 | 9 h. 21 min. |
| 30.12.2025 | 07:23 | 16:45 | 9 h. 22 min. |
| 31.12.2025 | 07:23 | 16:46 | 9 h. 23 min. |
| 01.01.2026 | 07:23 | 16:47 | 9 h. 24 min. |
| 02.01.2026 | 07:23 | 16:47 | 9 h. 24 min. |
| 03.01.2026 | 07:23 | 16:48 | 9 h. 25 min. |
| 04.01.2026 | 07:23 | 16:49 | 9 h. 26 min. |
| 05.01.2026 | 07:23 | 16:50 | 9 h. 27 min. |
| 06.01.2026 | 07:23 | 16:51 | 9 h. 28 min. |
Monthly day length in Boulder, hours
This chart show the number of hours when sun is above the horizon line.
Best time for vacation in Boulder
Boulder on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boulder
Local time: 20:33
December 26, friday
2100
45°F
E
9 mph
9 mph
December 27, saturday
0000
43°F
NE
9 mph
9 mph
0300
41°F
NE
9 mph
9 mph
0600
37°F
NE
8 mph
8 mph
0900
36°F
NE
5 mph
5 mph
1200
46°F
N
5 mph
5 mph
1500
50°F
NW
3 mph
3 mph
1800
41°F
NE
2 mph
2 mph
