Moon Phases in May 2027
The dates of the four major moon phases in May 2027:
- New Moon on May 6
- First Quarter on May 13
- Full Moon on May 20
- Last Quarter on May 28
The four phases of the moon
A new moon is the first lunar phase that happens about once a month or 29.53 days on average. The moon itself is not visible, though you may be able to “see” it because it blocks the visibility of the stars behind it.
A full moon occurs when the Earth is directly between the Sun and Moon, so that the moon appears completely illuminated. It happens about once a month, or 29.53 days on average.
The first quarter moon occurs between the new moon and full moon, and the last quarter moon occurs after the full moon and before the next new moon.
Moon Phases Calendar for May 2027
All phase dates and times are in the USA Eastern Time adjusted for Daylight Savings Time for part of the year.
May 6
May 13
May 20
May 28
| Moon Phase | Date | Time | Season |
|---|---|---|---|
| New Moon May 2027 | May 6 (Thursday) | 6:59 a.m. EDT | Spring |
| First Quarter May 2027 | May 13 (Thursday) | 12:44 a.m. EDT | Spring |
| Full Moon May 2027 | May 20 (Thursday) | 6:59 a.m. EDT | Spring |
| Last Quarter May 2027 | May 28 (Friday) | 9:58 a.m. EDT | Spring |