August 2027 Moon Phase Calendar

Updated October 2, 2026 · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)

The daily phase and illumination below are sampled at 8:00 p.m. Eastern Time. Principal phases are exact astronomical instants. Moonrise is for New York City and may occur on a different local date elsewhere.

August 2027 Moon Phase Calendar — Gregorian

Gregorian dates: August 1, 2027 – August 31, 2027.

Switching keeps the reference date, August 1, 2027. Weekday headings follow the Gregorian calendar. 13-month dates appear below each day. The detail tables below keep their stated Gregorian date ranges.

Moon phases for August 2027, Eastern Time. 13 month calendar date shown in the center of each day.
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
10.3%Jul 17	20.5%Jul 18 New Moon 6:05 a.m. EDT	33.8%Jul 19	49.8%Jul 20	517.8%Jul 21	627.3%Jul 22	737.5%Jul 23
848%Jul 24	958.2%Jul 25 First Quarter 12:54 a.m. EDT	1067.8%Jul 26	1176.6%Jul 27	1284.2%Jul 28	1390.5%Aug 1	1495.3%Aug 2
1598.5%Aug 3	1699.9%Aug 4	1799.5%Aug 5 Full Moon 3:28 a.m. EDT	1897.4%Aug 6	1993.4%Aug 7	2087.7%Aug 8	2180.4%Aug 9
2271.7%Aug 10	2361.9%Aug 11	2451.3%Aug 12 Last Quarter 10:27 p.m. EDT	2540.3%Aug 13	2629.4%Aug 14	2719.4%Aug 15	2810.9%Aug 16
294.5%Aug 17	300.8%Aug 18	310.2%Aug 19 New Moon 1:41 p.m. EDT

Daily phase names group the cycle into eight broad phase sectors, using progress between exact astronomical events. They describe the 8 p.m. Eastern sample, not the instant of a new moon, quarter moon, or full moon. The tables list those exact principal-phase instants separately.

August 2027 Moon Phases — Exact Times

Principal lunar phases in August 2027, with Eastern and UTC civil dates
Phase	Date	Time (ET)	Time (UTC)	13 month date
New Moon	August 2, 2027	6:05 a.m. EDT	August 2, 2027 10:05 a.m. UTC	July 18, 2027
First Quarter	August 9, 2027	12:54 a.m. EDT	August 9, 2027 4:54 a.m. UTC	July 25, 2027
Full Moon	August 17, 2027	3:28 a.m. EDT	August 17, 2027 7:28 a.m. UTC	August 5, 2027
Last Quarter	August 24, 2027	10:27 p.m. EDT	August 25, 2027 2:27 a.m. UTC	August 12, 2027
New Moon	August 31, 2027	1:41 p.m. EDT	August 31, 2027 5:41 p.m. UTC	August 19, 2027

Special events and calculation notes

August 2, 2027: Total solar eclipse (NASA GSFC)
August 17, 2027: Penumbral lunar eclipse (NASA GSFC)

Eclipse classifications are from NASA GSFC. On this site, “supermoon” means a full moon with a computed geocentric distance of 360,000 km or less.

Daily Moon Phase, Illumination, and Moonrise

Daily lunar conditions in August 2027; phase and illumination sampled at 8:00 p.m. Eastern
Date	Phase at 8 p.m. ET	Illumination	NYC moonrise (ET / UTC)	13 month date
August 1, 2027	New Moon	0.3%	August 1, 2027, 4:40 a.m. EDT August 1, 2027, 8:40 a.m. UTC	July 17, 2027
August 2, 2027	New Moon	0.5%	August 2, 2027, 6:02 a.m. EDT August 2, 2027, 10:02 a.m. UTC	July 18, 2027
August 3, 2027	New Moon	3.8%	August 3, 2027, 7:22 a.m. EDT August 3, 2027, 11:22 a.m. UTC	July 19, 2027
August 4, 2027	Waxing Crescent	9.8%	August 4, 2027, 8:40 a.m. EDT August 4, 2027, 12:40 p.m. UTC	July 20, 2027
August 5, 2027	Waxing Crescent	17.8%	August 5, 2027, 9:55 a.m. EDT August 5, 2027, 1:55 p.m. UTC	July 21, 2027
August 6, 2027	Waxing Crescent	27.3%	August 6, 2027, 11:07 a.m. EDT August 6, 2027, 3:07 p.m. UTC	July 22, 2027
August 7, 2027	First Quarter	37.5%	August 7, 2027, 12:19 p.m. EDT August 7, 2027, 4:19 p.m. UTC	July 23, 2027
August 8, 2027	First Quarter	48%	August 8, 2027, 1:29 p.m. EDT August 8, 2027, 5:29 p.m. UTC	July 24, 2027
August 9, 2027	First Quarter	58.2%	August 9, 2027, 2:36 p.m. EDT August 9, 2027, 6:36 p.m. UTC	July 25, 2027
August 10, 2027	First Quarter	67.8%	August 10, 2027, 3:40 p.m. EDT August 10, 2027, 7:40 p.m. UTC	July 26, 2027
August 11, 2027	Waxing Gibbous	76.6%	August 11, 2027, 4:37 p.m. EDT August 11, 2027, 8:37 p.m. UTC	July 27, 2027
August 12, 2027	Waxing Gibbous	84.2%	August 12, 2027, 5:27 p.m. EDT August 12, 2027, 9:27 p.m. UTC	July 28, 2027
August 13, 2027	Waxing Gibbous	90.5%	August 13, 2027, 6:09 p.m. EDT August 13, 2027, 10:09 p.m. UTC	August 1, 2027
August 14, 2027	Waxing Gibbous	95.3%	August 14, 2027, 6:44 p.m. EDT August 14, 2027, 10:44 p.m. UTC	August 2, 2027
August 15, 2027	Full Moon	98.5%	August 15, 2027, 7:13 p.m. EDT August 15, 2027, 11:13 p.m. UTC	August 3, 2027
August 16, 2027	Full Moon	99.9%	August 16, 2027, 7:38 p.m. EDT August 16, 2027, 11:38 p.m. UTC	August 4, 2027
August 17, 2027	Full Moon	99.5%	August 17, 2027, 8:00 p.m. EDT August 18, 2027, 12:00 a.m. UTC	August 5, 2027
August 18, 2027	Full Moon	97.4%	August 18, 2027, 8:21 p.m. EDT August 19, 2027, 12:21 a.m. UTC	August 6, 2027
August 19, 2027	Waning Gibbous	93.4%	August 19, 2027, 8:41 p.m. EDT August 20, 2027, 12:41 a.m. UTC	August 7, 2027
August 20, 2027	Waning Gibbous	87.7%	August 20, 2027, 9:03 p.m. EDT August 21, 2027, 1:03 a.m. UTC	August 8, 2027
August 21, 2027	Waning Gibbous	80.4%	August 21, 2027, 9:26 p.m. EDT August 22, 2027, 1:26 a.m. UTC	August 9, 2027
August 22, 2027	Waning Gibbous	71.7%	August 22, 2027, 9:53 p.m. EDT August 23, 2027, 1:53 a.m. UTC	August 10, 2027
August 23, 2027	Last Quarter	61.9%	August 23, 2027, 10:26 p.m. EDT August 24, 2027, 2:26 a.m. UTC	August 11, 2027
August 24, 2027	Last Quarter	51.3%	August 24, 2027, 11:06 p.m. EDT August 25, 2027, 3:06 a.m. UTC	August 12, 2027
August 25, 2027	Last Quarter	40.3%	August 25, 2027, 11:58 p.m. EDT August 26, 2027, 3:58 a.m. UTC	August 13, 2027
August 26, 2027	Waning Crescent	29.4%	No moonrise on this Eastern calendar date	August 14, 2027
August 27, 2027	Waning Crescent	19.4%	August 27, 2027, 1:01 a.m. EDT August 27, 2027, 5:01 a.m. UTC	August 15, 2027
August 28, 2027	Waning Crescent	10.9%	August 28, 2027, 2:13 a.m. EDT August 28, 2027, 6:13 a.m. UTC	August 16, 2027
August 29, 2027	Waning Crescent	4.5%	August 29, 2027, 3:32 a.m. EDT August 29, 2027, 7:32 a.m. UTC	August 17, 2027
August 30, 2027	New Moon	0.8%	August 30, 2027, 4:52 a.m. EDT August 30, 2027, 8:52 a.m. UTC	August 18, 2027
August 31, 2027	New Moon	0.2%	August 31, 2027, 6:11 a.m. EDT August 31, 2027, 10:11 a.m. UTC	August 19, 2027

“No moonrise” means no rise occurs during that midnight-to-midnight Eastern calendar date at the New York City observer location; it does not mean the moon never rises.