Moon Phases in August 2026
The dates of the four major moon phases in August 2026:
- Last Quarter on August 5
- New Moon on August 12
- First Quarter on August 19
- Full Moon on August 28
The four phases of the moon
The four major phases of the moon are the new moon, first quarter, full moon, and last quarter.
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 August 2026
All phase dates and times are in the USA Eastern Time adjusted for Daylight Savings Time for part of the year.
August 5
August 12
August 19
August 28
| Moon Phase | Date | Time | Season |
|---|---|---|---|
| Last Quarter August 2026 | August 5 (Wednesday) | 10:21 p.m. EDT | Summer |
| New Moon August 2026 | August 12 (Wednesday) | 1:37 p.m. EDT | Summer |
| First Quarter August 2026 | August 19 (Wednesday) | 10:46 p.m. EDT | Summer |
| Full Moon August 2026 | August 28 (Friday) | 12:18 a.m. EDT | Summer |