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The name of this month’s full moon is a strange and slithery one! It’s called the Worm Moon, and it will reach its peak on Sunday at 2:48 pm EDT.

Although it will reach its fullest phase on Sunday, it will appear full the night before and after its peak.

Full moon names typically correspond to seasonal markers. For example, the Harvest Moon occurs at the end of the growing season in September or October. The cooler month of December is assigned the Cold Moon. Meanwhile, the Worm Moon is a reference to the earthworms that start appearing in the soil in early spring.

(Photo credit: ANNE-CHRISTINE POUJOULAT/AFP via Getty Images)

On Tuesday, the moon will reach perigee, the nearest point to Earth in its orbit. This means the moon will appear slightly larger than usual in the night sky and may be referred to as a “supermoon” (by some definitions), according to NASA.

Dates of the moon phases in March 2021. (Image credit: NASA/JPL)

When the full moon coincides with perigee it is sometimes called a “supermoon.” However, the full moon will miss perigee by about 35 hours. “Supermoon” isn’t an official technical term used by astronomers. Whether a full moon counts as “super” depends on how close to the full moon the user of the word thinks perigee should be. 

Full Moons in 2021

DateNameU.S. Eastern TimeUTC
Jan 28Wolf Moon2:16 p.m.19:16
Feb 27Snow Moon3:17 a.m.8:17
Mar 28Worm Moon2:48 p.m.18:48
Apr 26Pink Moon11:31 p.m.3:31 (Apr. 27)
May 26Flower Moon7:14 a.m.11:14
Jun 24Strawberry Moon2:40 p.m.18:40
Jul 23Buck Moon10:37 a.m.2:37 (Jul 24)
Aug 22Sturgeon Moon8:02 a.m.12:02
Sep 20Corn Moon7:55 a.m.23:55
Oct 20Harvest Moon10:57 a.m.14:57
Nov 19Beaver Moon3:58 a.m.8:58
Dec 18Cold Moon11:36 p.m.4:36 (Dec 19)
This is when full moons will occur in 2021, according to NASA