Moon phase, moonrise and moonset times in Boulder, Colorado, United States

Current local time 3:56:59 AM (UTC-6)

August 2025 — Moon in Boulder

Date		Moonrise	Moonset	Moonrise	Moon phase	Illumination
August 1	Fri	—	—	1:55 PM	First quarter	52%
August 2	Sat	—	12:20 AM	3:01 PM	Waxing gibbous	62%
August 3	Sun	—	12:59 AM	4:05 PM	Waxing gibbous	71%
August 4	Mon	—	1:44 AM	5:06 PM	Waxing gibbous	79%
August 5	Tue	—	2:36 AM	6:01 PM	Waxing gibbous	87%
August 6	Wed	—	3:35 AM	6:49 PM	Waxing gibbous	93%
August 7	Thu	—	4:37 AM	7:31 PM	Waxing gibbous	97%
August 8	Fri	—	5:43 AM	8:07 PM	Waxing gibbous	100%
August 9	Sat	—	6:49 AM	8:39 PM	Full moon	100%
August 10	Sun	—	7:54 AM	9:08 PM	Waning gibbous	98%
August 11	Mon	—	9:00 AM	9:35 PM	Waning gibbous	93%
August 12	Tue	—	10:04 AM	10:03 PM	Waning gibbous	86%
August 13	Wed	—	11:09 AM	10:31 PM	Waning gibbous	77%
August 14	Thu	—	12:15 PM	11:02 PM	Waning gibbous	67%
August 15	Fri	—	1:21 PM	11:38 PM	Third quarter	55%
August 16	Sat	—	2:27 PM	—	Waning crescent	44%
August 17	Sun	12:18 AM	3:30 PM	—	Waning crescent	33%
August 18	Mon	1:06 AM	4:29 PM	—	Waning crescent	23%
August 19	Tue	2:00 AM	5:22 PM	—	Waning crescent	14%
August 20	Wed	2:59 AM	6:08 PM	—	Waning crescent	7%
August 21	Thu	4:03 AM	6:48 PM	—	Waning crescent	3%
August 22	Fri	5:09 AM	7:23 PM	—	Waning crescent	0%
August 23	Sat	6:15 AM	7:54 PM	—	New moon	0%
August 24	Sun	7:20 AM	8:22 PM	—	Waxing crescent	2%
August 25	Mon	8:25 AM	8:49 PM	—	Waxing crescent	6%
August 26	Tue	9:30 AM	9:17 PM	—	Waxing crescent	12%
August 27	Wed	10:35 AM	9:46 PM	—	Waxing crescent	19%
August 28	Thu	11:41 AM	10:19 PM	—	Waxing crescent	27%
August 29	Fri	12:47 PM	10:55 PM	—	Waxing crescent	36%
August 30	Sat	1:52 PM	11:38 PM	—	Waxing crescent	45%
August 31	Sun	—	—	2:54 PM	First quarter	55%

Boulder