Moon phases in August 2025

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 917.0° Aquarius
  • New MoonAugust 230.4° Virgo

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.

DatePhaseSignIlluminationNotes
Fri 1First QuarterScorpio50%
Sat 2Waxing GibbousScorpio59%
Sun 3Waxing GibbousScorpioSagittarius68%
Mon 4Waxing GibbousSagittarius77%
Tue 5Waxing GibbousSagittariusCapricorn85%
Wed 6Waxing GibbousCapricorn91%
Thu 7Waxing GibbousCapricorn96%
Fri 8Waxing GibbousCapricornAquarius99%
Sat 9Full MoonAquarius100%
Sun 10Waning GibbousAquariusPisces98%
Mon 11Waning GibbousPisces94%
Tue 12Waning GibbousPiscesAries88%
Wed 13Waning GibbousAries79%
Thu 14Waning GibbousAriesTaurus69%
Fri 15Waning GibbousTaurus58%
Sat 16Last QuarterTaurusGemini47%
Sun 17Waning CrescentGemini35%
Mon 18Waning CrescentGeminiCancer25%
Tue 19Waning CrescentCancer16%
Wed 20Waning CrescentCancerLeo9%
Thu 21Waning CrescentLeo3%
Fri 22Waning CrescentLeo1%
Sat 23New MoonLeoVirgo0%
Sun 24Waxing CrescentVirgo2%
Mon 25Waxing CrescentVirgoLibra5%
Tue 26Waxing CrescentLibra10%
Wed 27Waxing CrescentLibra17%
Thu 28Waxing CrescentLibraScorpio25%
Fri 29Waxing CrescentScorpio33%
Sat 30Waxing CrescentScorpioSagittarius43%
Sun 31First QuarterSagittarius52%

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.

1
Full moons
1
New moons
13
Sign changes
100%
Brightest night

The Moon passes through 14 signs this month, in order: Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius. It changes sign 13 times — roughly every two and a third days, though not evenly, because the Moon’s speed varies about twelve per cent over an orbit.

Frequently asked questions

When is the full moon in August 2025?

There are 1 in August 2025. 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 2025?

There are 1 in August 2025, 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 2025?

It moves through 14 of them, changing sign 13 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.