Moonrise, Moonset & Phases in Boulder
Synchronizing with server time...
23:25:49
Saturday, 19 September 2026
🌔
Waxing Gibbous
6289.3% illumination
Current Moon Details for Boulder, United States
Moon Direction: 225.05° SW
Moon Altitude: 6.95°
Moon Distance: 402,619 km
Next Moonrise: Tomorrow, 16:07
Next Moonset: N/A
Next New Moon: 10 Oct 2026, 09:50
Next Full Moon: 26 Sep 2026, 10:48
Moonrise, Moonset and Moon Phase Calendar in Boulder, September 2026
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| Sep | Moon | Moonrise/Moonset | Meridian Passing | ||||
|---|---|---|---|---|---|---|---|
| Moonrise | Moonset | Moonrise | Time | Distance (km) | Illumination | ||
| 1 |
11:23
↑
(293° WNW)
|
21:36
↑
(64° ENE)
|
04:08
(65.8°)
|
370,814 | 77.7% | ||
| 2 |
12:37
↑
(300° WNW)
|
22:12
↑
(58° ENE)
|
05:00
(71.1°)
|
368,046 | 67.7% | ||
| 3 |
13:51
↑
(305° NW)
|
22:59
↑
(54° NE)
|
05:57
(75.1°)
|
365,726 | 56.7% | ||
| 4 |
🌗
at 01:51
|
15:01
↑
(307° NW)
|
23:56
↑
(52° NE)
|
06:58
(77.4°)
|
363,891 | 45.3% | |
| 5 |
-
|
16:02
↑
(307° NW)
|
08:00
(77.8°)
|
362,631 | 34.0% | ||
| 6 |
01:04
↑
(54° NE)
|
16:54
↑
(304° WNW)
|
09:03
(76.1°)
|
362,090 | 23.5% | ||
| 7 |
02:19
↑
(58° ENE)
|
17:35
↑
(298° WNW)
|
10:03
(72.5°)
|
362,444 | 14.4% | ||
| 8 |
03:36
↑
(65° ENE)
|
18:08
↑
(291° WNW)
|
10:58
(67.5°)
|
363,852 | 7.3% | ||
| 9 |
04:51
↑
(72° ENE)
|
18:36
↑
(283° WNW)
|
11:50
(61.4°)
|
366,396 | 2.5% | ||
| 10 |
🌑
at 21:26
|
06:04
↑
(81° E)
|
19:00
↑
(274° W)
|
12:38
(54.8°)
|
370,039 | 0.2% | |
| 11 |
07:14
↑
(90° E)
|
19:24
↑
(266° W)
|
13:24
(48.1°)
|
374,607 | 0.5% | ||
| 12 |
08:22
↑
(98° E)
|
19:47
↑
(258° WSW)
|
14:09
(41.6°)
|
379,801 | 3.1% | ||
| 13 |
09:29
↑
(106° ESE)
|
20:11
↑
(250° WSW)
|
14:54
(35.7°)
|
385,232 | 7.8% | ||
| 14 |
10:35
↑
(114° ESE)
|
20:38
↑
(244° WSW)
|
15:41
(30.5°)
|
390,468 | 14.2% | ||
| 15 |
11:41
↑
(120° ESE)
|
21:09
↑
(238° WSW)
|
16:28
(26.3°)
|
395,082 | 21.9% | ||
| 16 |
12:45
↑
(124° SE)
|
21:46
↑
(234° SW)
|
17:18
(23.2°)
|
398,695 | 30.5% | ||
| 17 |
13:45
↑
(127° SE)
|
22:30
↑
(232° SW)
|
18:09
(21.5°)
|
401,014 | 39.6% | ||
| 18 |
🌓
at 14:43
|
14:40
↑
(128° SE)
|
23:21
↑
(232° SW)
|
19:00
(21.2°)
|
401,857 | 49.0% | |
| 19 | - |
15:27
↑
(127° SE)
|
19:51
(22.2°)
|
401,170 | 58.5% | ||
| 20 |
00:18
↑
(234° SW)
|
16:07
↑
(124° SE)
|
20:41
(24.6°)
|
399,028 | 67.6% | ||
| 21 |
01:20
↑
(238° WSW)
|
16:41
↑
(119° ESE)
|
21:29
(28.1°)
|
395,627 | 76.3% | ||
| 22 |
02:24
↑
(243° WSW)
|
17:09
↑
(114° ESE)
|
22:15
(32.8°)
|
391,264 | 84.1% | ||
| 23 |
03:29
↑
(249° WSW)
|
17:34
↑
(106° ESE)
|
23:00
(38.2°)
|
386,305 | 90.7% | ||
| 24 |
04:35
↑
(257° WSW)
|
17:58
↑
(99° E)
|
23:44
(44.3°)
|
381,152 | 95.7% | ||
| 25 |
05:41
↑
(265° W)
|
18:20
↑
(91° E)
|
Does not pass meridian
(N/A)
|
N/A | 98.9% | ||
| 26 |
🌕
at 10:48
|
06:48
↑
(274° W)
|
18:43
↑
(82° E)
|
00:28
(50.8°)
|
376,202 | 99.9% | |
| 27 |
07:57
↑
(282° WNW)
|
19:08
↑
(74° ENE)
|
01:14
(57.4°)
|
371,804 | 98.5% | ||
| 28 |
09:10
↑
(290° WNW)
|
19:38
↑
(66° ENE)
|
02:03
(63.7°)
|
368,215 | 94.7% | ||
| 29 |
10:25
↑
(298° WNW)
|
20:13
↑
(60° ENE)
|
02:55
(69.3°)
|
365,581 | 88.5% | ||
| 30 |
11:40
↑
(303° WNW)
|
20:57
↑
(55° NE)
|
03:51
(73.9°)
|
363,927 | 80.2% | ||
|
* All times are local time for Boulder. Moonrise and moonset times are calculated for the geometric center of the Moon and account for Earth's atmospheric refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon (or local noon if meridian passage is not on this day). The table may show "-" for moonrise or moonset if the event does not occur on that specific local day, or if the Moon is circumpolar (always above or always below the horizon). Two moonrises or moonsets on the same day can occur due to the Moon's orbital motion and the definition of a local day. |
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FAQ — The Moon Viewed from Boulder
Common questions about this page — answers customized for the data shown above.
The current moon phase visible from Boulder is 🌔 Waxing Gibbous, with the moon's illuminated fraction at 6289.3%. The moon is currently above horizon as seen from Boulder. For complementary daytime data, see sunrise and sunset in Boulder.
The next moonrise visible from Boulder is Tomorrow, 16:07 local time. Moonrise times shift later each night because the moon orbits Earth roughly every 27 days, lagging behind the sun by about 50 minutes per day. Compare with sunrise times worldwide to see how sun and moon timing diverge.
From Boulder, the moon currently sits at an altitude of 6.95° above the horizon, toward SW. Altitude is measured in degrees above the horizon — 0° means at the horizon and 90° means directly overhead. Cloud cover from the current Boulder weather can affect visibility.
The moon is approximately 402,619 km from Boulder at this moment. The Earth–moon distance ranges from about 356,500 km at perigee (closest) to about 406,700 km at apogee (farthest) during each lunar orbit.
A full moon occurs roughly every 29.5 days (one synodic month). The moonrise table and phase calendar above show upcoming full and new moons visible from Boulder. The moon phase is the same for all viewers on Earth — only the local rise and set times differ by latitude and longitude.
Yes — every observer on Earth sees the same moon at the same phase at any given moment. What differs by location is the time the moon rises and sets, the direction it appears on the horizon, and (slightly) the orientation of the visible face due to the viewer's latitude. From Boulder, the moon's rise and set times are calculated for the city's exact coordinates — see also sunrise/sunset in Boulder.