When Is Black Moon August 2027?
Black Moon August 2027 falls on Tuesday, August 31, 2027.
Black Moon August 2027 falls on Tuesday, August 31, 2027 — a Tuesday. That is 312 days from today. The date is confirmed, so the only thing that moves is the countdown itself.
| Year | Date | Day of week |
|---|---|---|
| 2027 | Tue 31 Aug 2027 | Tuesday |
| 2028 | Thu 31 Aug 2028 | Thursday |
| 2029 | Fri 31 Aug 2029 | Friday |
| 2030 | Sat 31 Aug 2030 | Saturday |
| 2031 | Sun 31 Aug 2031 | Sunday |
| 2032 | Tue 31 Aug 2032 | Tuesday |
Why the day of the week moves
A date advances by one weekday each year, because 365 days is 52 weeks plus one day. In a leap year it advances by two, which is why the weekday occasionally jumps. Over the six years in the table above you can watch both patterns: the single-step years and the leap-year double step.
This matters more than it sounds if you are planning around a weekend. An event that lands on a Saturday this year may fall midweek in two years' time, which changes everything from travel to time off.
About Black Moon August 2027
August 31, 2027 at 17:42 UTC brings a second new moon in a single calendar month — a Black Moon, the new moon's answer to the Blue. It happens only every two to three years, which is exactly why the phrase 'once in a blue moon' means what it means.
This one peaks at 8°06' Virgo. Nothing looks different from an ordinary full or new moon — the rarity is purely calendrical, and the counter above treats it like any other: with perfect accuracy.
Quick facts
| Peak (UTC) | August 31, 2027 · 17:42 |
|---|---|
| Zodiac position | 8°06' Virgo |
| Rarity | Every ~2.5 years |
| Fun fact | The next one is never far — the calendar always catches up |