May 2026 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 2026 Moon Phase Calendar — Gregorian
Gregorian dates: May 1, 2026 – May 31, 2026.
Switching keeps the reference date, May 1, 2026. Weekday headings follow the Gregorian calendar. 13-month dates appear below each day. The detail tables below keep their stated Gregorian date ranges.
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
 99.8%May 9
Full Moon 1:23 p.m. EDT
|
98.3%May 10
| |||||
 95.1%May 11
|
90.3%May 12
|
84.1%May 13
|
76.7%May 14
|
 68.2%May 15
|
58.8%May 16
|
49%May 17
Last Quarter 5:10 p.m. EDT
|
|
38.8%May 18
|
 28.9%May 19
|
19.5%May 20
|
11.4%May 21
|
5.1%May 22
|
 1.2%May 23
|
0.2%May 24
New Moon 4:00 p.m. EDT
|
|
2.3%May 25
|
 7.2%May 26
|
14.7%May 27
|
23.9%May 28
|
 34.3%Jun 1
|
45.1%Jun 2
|
55.8%Jun 3
First Quarter 7:10 a.m. EDT
|
|
66%Jun 4
|
 75.2%Jun 5
|
83.2%Jun 6
|
89.8%Jun 7
|
94.8%Jun 8
|
98.1%Jun 9
|
99.7%Jun 10
|
|
99.5%Jun 11
Full Moon 4:45 a.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.
May 2026 Moon Phases — Exact Times
| Phase | Date | Time (ET) | Time (UTC) | 13 month date |
|---|---|---|---|---|
| Full Moon | 1:23 p.m. EDT | 5:23 p.m. UTC | May 9, 2026 | |
| Last Quarter | 5:10 p.m. EDT | 9:10 p.m. UTC | May 17, 2026 | |
| New Moon | 4:00 p.m. EDT | 8:00 p.m. UTC | May 24, 2026 | |
| First Quarter | 7:10 a.m. EDT | 11:10 a.m. UTC | June 3, 2026 | |
| Full Moon | 4:45 a.m. EDT | 8:45 a.m. UTC | June 11, 2026 |
Special events and calculation notes
- : Second ET-calendar-month full moon; also the Flower Moon
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
“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.