Moon calendar, August 2031
Tropical zodiac · geocentric, apparent positions · Swiss Ephemeris, checked against NASA JPL DE440 · void of course: last exact conjunction, sextile, square, trine or opposition to the Sun and Mercury to Pluto · times in UTC
Full Moon on 3 August at 01:45, in Aquarius. New Moon on 18 August at 04:32, in Leo.
The Moon changes sign 14 times this month and is void of course before each change.
| Date | Moon sign | Phase | Void of course |
|---|---|---|---|
| Fri 1 | Capricorn | from 13:20 | |
| Sat 2 | Capricorn, enters Aquarius at 09:05 | until 09:05 | |
| Sun 3 | Aquarius | Full Moon at 01:45 | |
| Mon 4 | Aquarius, enters Pisces at 08:40 | 01:55 to 08:40 | |
| Tue 5 | Pisces | ||
| Wed 6 | Pisces, enters Aries at 10:20 | 03:20 to 10:20 | |
| Thu 7 | Aries | ||
| Fri 8 | Aries, enters Taurus at 15:47 | 08:23 to 15:47 | |
| Sat 9 | Taurus | ||
| Sun 10 | Taurus | Last quarter at 00:23 | from 09:18 |
| Mon 11 | Taurus, enters Gemini at 01:21 | until 01:21 | |
| Tue 12 | Gemini | ||
| Wed 13 | Gemini, enters Cancer at 13:39 | 05:55 to 13:39 | |
| Thu 14 | Cancer | ||
| Fri 15 | Cancer | from 15:32 | |
| Sat 16 | Cancer, enters Leo at 02:29 | until 02:29 | |
| Sun 17 | Leo | ||
| Mon 18 | Leo, enters Virgo at 14:15 | New Moon at 04:32 | 07:07 to 14:15 |
| Tue 19 | Virgo | ||
| Wed 20 | Virgo | from 19:26 | |
| Thu 21 | Virgo, enters Libra at 00:22 | until 00:22 | |
| Fri 22 | Libra | ||
| Sat 23 | Libra, enters Scorpio at 08:35 | 02:14 to 08:35 | |
| Sun 24 | Scorpio | from 11:11 | |
| Mon 25 | Scorpio, enters Sagittarius at 14:29 | First quarter at 18:39 | until 14:29 |
| Tue 26 | Sagittarius | ||
| Wed 27 | Sagittarius, enters Capricorn at 17:46 | 12:14 to 17:46 | |
| Thu 28 | Capricorn | from 18:52 | |
| Fri 29 | Capricorn, enters Aquarius at 18:52 | until 18:52 | |
| Sat 30 | Aquarius | ||
| Sun 31 | Aquarius, enters Pisces at 19:07 | 13:59 to 19:07 |
Go deeper: phases, signs and void of course
Phases. New Moon is the moment the Moon passes the Sun in longitude; first quarter, full and last quarter are 90°, 180° and 270° past it. Each happens at one instant worldwide; only the clock time differs by place.
Signs. The Moon crosses a sign in about two and a half days. These are tropical signs; in a sidereal (Vedic) zodiac the Moon reaches each sign about 24° later, nearly two days after the times shown.
Void of course. From the Moon’s last exact major aspect in a sign until it enters the next sign. William Lilly, in the 17th century, counted only the Sun and the five visible planets; most modern calendars add Uranus, Neptune and Pluto, so their void periods are often shorter. Switch between the two above.