May 2027 Moon Phase Calendar

Updated · 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.

May 2027 Moon Phase Calendar — Gregorian

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

Switching keeps the reference date, May 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 May 2027, Eastern Time. 13 month calendar date shown in the center of each day.
SundayMondayTuesdayWednesdayThursdayFridaySaturday
Waning Crescent, 21.4% illuminated21.4%May 9
Waning Crescent, 13.7% illuminated13.7%May 10 Waning Crescent, 7.4% illuminated7.4%May 11 New Moon, 2.8% illuminated2.8%May 12 New Moon, 0.5% illuminated0.5%May 13 New Moon, 0.6% illuminated0.6%May 14 New Moon 6:58 a.m. EDT New Moon, 3.3% illuminated3.3%May 15 Waxing Crescent, 8.7% illuminated8.7%May 16
Waxing Crescent, 16.3% illuminated16.3%May 17 Waxing Crescent, 25.8% illuminated25.8%May 18 First Quarter, 36.6% illuminated36.6%May 19 First Quarter, 47.9% illuminated47.9%May 20 First Quarter, 59.2% illuminated59.2%May 21 First Quarter 12:43 a.m. EDT First Quarter, 69.8% illuminated69.8%May 22 Waxing Gibbous, 79.3% illuminated79.3%May 23
Waxing Gibbous, 87.3% illuminated87.3%May 24 Waxing Gibbous, 93.5% illuminated93.5%May 25 Full Moon, 97.6% illuminated97.6%May 26 Full Moon, 99.6% illuminated99.6%May 27 Full Moon, 99.5% illuminated99.5%May 28 Full Moon 6:58 a.m. EDT Full Moon, 97.5% illuminated97.5%Jun 1 Waning Gibbous, 93.7% illuminated93.7%Jun 2
Waning Gibbous, 88.3% illuminated88.3%Jun 3 Waning Gibbous, 81.6% illuminated81.6%Jun 4 Waning Gibbous, 73.7% illuminated73.7%Jun 5 Last Quarter, 65% illuminated65%Jun 6 Last Quarter, 55.7% illuminated55.7%Jun 7 Last Quarter, 46.1% illuminated46.1%Jun 8 Last Quarter 9:57 a.m. EDT Last Quarter, 36.3% illuminated36.3%Jun 9
Waning Crescent, 26.9% illuminated26.9%Jun 10 Waning Crescent, 18.2% illuminated18.2%Jun 11

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.

May 2027 Moon Phases — Exact Times

Principal lunar phases in May 2027, with Eastern and UTC civil dates
PhaseDateTime (ET)Time (UTC)13 month date
New Moon6:58 a.m. EDT
10:58 a.m. UTC		May 14, 2027
First Quarter12:43 a.m. EDT
4:43 a.m. UTC		May 21, 2027
Full Moon6:58 a.m. EDT
10:58 a.m. UTC		May 28, 2027
Last Quarter9:57 a.m. EDT
1:57 p.m. UTC		June 8, 2027

Daily Moon Phase, Illumination, and Moonrise

Daily lunar conditions in May 2027; phase and illumination sampled at 8:00 p.m. Eastern
DatePhase at 8 p.m. ETIlluminationNYC moonrise (ET / UTC)13 month date
Waning Crescent, 21.4% illuminatedWaning Crescent21.4%, 3:22 a.m. EDT
, 7:22 a.m. UTC		May 9, 2027
Waning Crescent, 13.7% illuminatedWaning Crescent13.7%, 3:44 a.m. EDT
, 7:44 a.m. UTC		May 10, 2027
Waning Crescent, 7.4% illuminatedWaning Crescent7.4%, 4:06 a.m. EDT
, 8:06 a.m. UTC		May 11, 2027
New Moon, 2.8% illuminatedNew Moon2.8%, 4:29 a.m. EDT
, 8:29 a.m. UTC		May 12, 2027
New Moon, 0.5% illuminatedNew Moon0.5%, 4:57 a.m. EDT
, 8:57 a.m. UTC		May 13, 2027
New Moon, 0.6% illuminatedNew Moon0.6%, 5:29 a.m. EDT
, 9:29 a.m. UTC		May 14, 2027
New Moon, 3.3% illuminatedNew Moon3.3%, 6:11 a.m. EDT
, 10:11 a.m. UTC		May 15, 2027
Waxing Crescent, 8.7% illuminatedWaxing Crescent8.7%, 7:02 a.m. EDT
, 11:02 a.m. UTC		May 16, 2027
Waxing Crescent, 16.3% illuminatedWaxing Crescent16.3%, 8:05 a.m. EDT
, 12:05 p.m. UTC		May 17, 2027
Waxing Crescent, 25.8% illuminatedWaxing Crescent25.8%, 9:17 a.m. EDT
, 1:17 p.m. UTC		May 18, 2027
First Quarter, 36.6% illuminatedFirst Quarter36.6%, 10:33 a.m. EDT
, 2:33 p.m. UTC		May 19, 2027
First Quarter, 47.9% illuminatedFirst Quarter47.9%, 11:48 a.m. EDT
, 3:48 p.m. UTC		May 20, 2027
First Quarter, 59.2% illuminatedFirst Quarter59.2%, 1:02 p.m. EDT
, 5:02 p.m. UTC		May 21, 2027
First Quarter, 69.8% illuminatedFirst Quarter69.8%, 2:13 p.m. EDT
, 6:13 p.m. UTC		May 22, 2027
Waxing Gibbous, 79.3% illuminatedWaxing Gibbous79.3%, 3:22 p.m. EDT
, 7:22 p.m. UTC		May 23, 2027
Waxing Gibbous, 87.3% illuminatedWaxing Gibbous87.3%, 4:31 p.m. EDT
, 8:31 p.m. UTC		May 24, 2027
Waxing Gibbous, 93.5% illuminatedWaxing Gibbous93.5%, 5:40 p.m. EDT
, 9:40 p.m. UTC		May 25, 2027
Full Moon, 97.6% illuminatedFull Moon97.6%, 6:48 p.m. EDT
, 10:48 p.m. UTC		May 26, 2027
Full Moon, 99.6% illuminatedFull Moon99.6%, 7:56 p.m. EDT
, 11:56 p.m. UTC		May 27, 2027
Full Moon, 99.5% illuminatedFull Moon99.5%, 9:01 p.m. EDT
, 1:01 a.m. UTC		May 28, 2027
Full Moon, 97.5% illuminatedFull Moon97.5%, 9:59 p.m. EDT
, 1:59 a.m. UTC		June 1, 2027
Waning Gibbous, 93.7% illuminatedWaning Gibbous93.7%, 10:50 p.m. EDT
, 2:50 a.m. UTC		June 2, 2027
Waning Gibbous, 88.3% illuminatedWaning Gibbous88.3%, 11:33 p.m. EDT
, 3:33 a.m. UTC		June 3, 2027
Waning Gibbous, 81.6% illuminatedWaning Gibbous81.6%No moonrise on this Eastern calendar dateJune 4, 2027
Waning Gibbous, 73.7% illuminatedWaning Gibbous73.7%, 12:08 a.m. EDT
, 4:08 a.m. UTC		June 5, 2027
Last Quarter, 65% illuminatedLast Quarter65%, 12:37 a.m. EDT
, 4:37 a.m. UTC		June 6, 2027
Last Quarter, 55.7% illuminatedLast Quarter55.7%, 1:02 a.m. EDT
, 5:02 a.m. UTC		June 7, 2027
Last Quarter, 46.1% illuminatedLast Quarter46.1%, 1:25 a.m. EDT
, 5:25 a.m. UTC		June 8, 2027
Last Quarter, 36.3% illuminatedLast Quarter36.3%, 1:46 a.m. EDT
, 5:46 a.m. UTC		June 9, 2027
Waning Crescent, 26.9% illuminatedWaning Crescent26.9%, 2:07 a.m. EDT
, 6:07 a.m. UTC		June 10, 2027
Waning Crescent, 18.2% illuminatedWaning Crescent18.2%, 2:29 a.m. EDT
, 6:29 a.m. UTC		June 11, 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.