Moon phases in August 2023
All 31 days, computed from the ephemeris rather than copied from another calendar: the Moon’s sign, the exact instant it changes sign, and the lit fraction of the disc. Shown in your own timezone.
- Sturgeon MoonAugust 19.3° Aquarius
- New MoonAugust 1623.3° Leo
- Blue MoonAugust 317.4° Pisces
Day by day
The four quarter instants are marked on the day they fall; every other day carries the interval it is in. Four of the eight phases are moments and four are stretches, which is the one thing most calendars leave out.
| Date | Phase | Sign | Illumination | Notes | |
|---|---|---|---|---|---|
| Tue 1 | Full Moon | Capricorn→Aquarius | 100% | ||
| Wed 2 | Waning Gibbous | Aquarius | 99% | ||
| Thu 3 | Waning Gibbous | Aquarius→Pisces | 95% | ||
| Fri 4 | Waning Gibbous | Pisces | 89% | ||
| Sat 5 | Waning Gibbous | Pisces→Aries | 81% | ||
| Sun 6 | Waning Gibbous | Aries | 71% | ||
| Mon 7 | Waning Gibbous | Aries→Taurus | 60% | ||
| Tue 8 | Last Quarter | Taurus | 49% | ||
| Wed 9 | Waning Crescent | Taurus→Gemini | 39% | ||
| Thu 10 | Waning Crescent | Gemini | 29% | ||
| Fri 11 | Waning Crescent | Gemini→Cancer | 21% | ||
| Sat 12 | Waning Crescent | Cancer | 13% | ||
| Sun 13 | Waning Crescent | Cancer | 7% | ||
| Mon 14 | Waning Crescent | Cancer→Leo | 3% | ||
| Tue 15 | Waning Crescent | Leo | 1% | ||
| Wed 16 | New Moon | Leo→Virgo | 0% | ||
| Thu 17 | Waxing Crescent | Virgo | 1% | ||
| Fri 18 | Waxing Crescent | Virgo | 4% | ||
| Sat 19 | Waxing Crescent | Virgo→Libra | 8% | ||
| Sun 20 | Waxing Crescent | Libra | 15% | ||
| Mon 21 | Waxing Crescent | Libra→Scorpio | 22% | ||
| Tue 22 | Waxing Crescent | Scorpio | 31% | ||
| Wed 23 | Waxing Crescent | Scorpio | 40% | ||
| Thu 24 | First Quarter | Scorpio→Sagittarius | 51% | ||
| Fri 25 | Waxing Gibbous | Sagittarius | 62% | ||
| Sat 26 | Waxing Gibbous | Sagittarius→Capricorn | 72% | ||
| Sun 27 | Waxing Gibbous | Capricorn | 82% | ||
| Mon 28 | Waxing Gibbous | Capricorn→Aquarius | 90% | ||
| Tue 29 | Waxing Gibbous | Aquarius | 96% | ||
| Wed 30 | Waxing Gibbous | Aquarius→Pisces | 100% | ||
| Thu 31 | Full Moon | Pisces | 100% | ||
Rows are UTC calendar days. The exact times follow the timezone setting above, so a time close to midnight can belong to the neighbouring day in your own zone.
- 2
- Full moons
- 1
- New moons
- 14
- Sign changes
- 100%
- Brightest night
The Moon passes through 14 signs this month, in order: Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces. It changes sign 14 times — roughly every two and a third days, though not evenly, because the Moon’s speed varies about twelve per cent over an orbit.
Two full moons this month
August 2023 carries a full moon on August 1 and another on August 31. The second one is a Blue Moon in the modern, month-based sense — the extra one the twelve traditional names have no slot for. It is not the older seasonal definition, which gives different dates, and nothing about the Moon looks any different.
Frequently asked questions
When is the full moon in August 2023?
There are 2 in August 2023. The exact instants are in the table above, shown in your own timezone, with the degree and sign each one falls on.
When is the new moon in August 2023?
There are 1 in August 2023, listed to the minute in the table above along with every other phase of the month.
What timezone are these times in?
Your own, resolved in your browser. The rows are UTC calendar days, so an instant close to midnight can belong to the neighbouring day once converted — the table marks those with a small +1 or −1. You can switch the whole page to UTC if you want to compare it against a site that publishes UTC.
What sign is the Moon in during August 2023?
It moves through 14 of them, changing sign 14 times. The exact instant of each change is in the sign column above. The Moon spends about two and a third days in a sign, which is why it covers the whole zodiac in a month while the Sun takes a year.