The Harvest Moon of 2027 is full at 23:04 UTC: September 15 in the US and September 16 in the UK, India and Australia. In total 8 of the 12 full moons of 2027 fall on a different calendar date in the US than in the UK, India or Australia, which is why many published moon lists are a day off for part of their readers.
A black moon is the second new moon in a calendar month. In the Americas, Europe, Africa and India it falls on August 31, 2027. In Singapore, Manila, Perth, Sydney, Melbourne, Auckland, Wellington the August 31 new moon already lands on September 1, which makes September 30 the black moon there.
Under the widely used 90% rule, the Cold Moon of December 13, 2027 would count as a supermoon if it were 50 km closer. January 22 (357,635 km) is a supermoon by every definition; February 20 only under the broad rule.
All 3 lunar eclipses of 2027 are penumbral and barely visible. The next total lunar eclipse, a real blood moon, is on Sunday, December 31, 2028 (UTC).
On August 2, 2027 totality lasts about 6 minutes 25 seconds at Luxor, Egypt. Southern Spain, Gibraltar and northern Morocco get between one and a half and five minutes; London sees 42% of the Sun covered.
No month of 2027 has two full moons, but Thursday, May 20, 2027 is the third of four full moons in the astronomical spring: a seasonal blue moon. The 12 full moons cover only 11 zodiac signs; Cancer is skipped and Scorpio gets two in a row. The smallest full moon of the year is the Buck Moon at 405,968 km.