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2021 Moon Calendar

Every new moon, first quarter, full moon and last quarter of 2021, with the traditional name of each of the 12 full moons. Dates and times are US Eastern time, computed with the lunar phase algorithm in Jean Meeus's Astronomical Algorithms and checked against the US Naval Observatory.

January 2021
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  • Last Quarter6 · 4:37 AM
  • New Moon13 · 12:00 AM
  • First Quarter20 · 4:02 PM
  • Full Moon28 · 2:16 PM
February 2021
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  • Last Quarter4 · 12:37 PM
  • New Moon11 · 2:06 PM
  • First Quarter19 · 1:47 PM
  • Full Moon27 · 3:17 AM
March 2021
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  • Last Quarter5 · 8:30 PM
  • New Moon13 · 5:21 AM
  • First Quarter21 · 10:40 AM
  • Full Moon28 · 2:48 PM
April 2021
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  • Last Quarter4 · 6:02 AM
  • New Moon11 · 10:31 PM
  • First Quarter20 · 2:59 AM
  • Full Moon26 · 11:31 PM
May 2021
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  • Last Quarter3 · 3:50 PM
  • New Moon11 · 3:00 PM
  • First Quarter19 · 3:13 PM
  • Full Moon26 · 7:14 AM
June 2021
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  • Last Quarter2 · 3:24 AM
  • New Moon10 · 6:53 AM
  • First Quarter17 · 11:54 PM
  • Full Moon24 · 2:40 PM
July 2021
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  • Last Quarter1 · 5:11 PM
  • New Moon9 · 9:17 PM
  • First Quarter17 · 6:11 AM
  • Full Moon23 · 10:37 PM
  • Last Quarter31 · 9:16 AM
August 2021
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  • New Moon8 · 9:50 AM
  • First Quarter15 · 11:20 AM
  • Full Moon22 · 8:02 AM
  • Last Quarter30 · 3:13 AM
September 2021
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  • New Moon6 · 8:52 PM
  • First Quarter13 · 4:39 PM
  • Full Moon20 · 7:55 PM
  • Last Quarter28 · 9:57 PM
October 2021
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  • New Moon6 · 7:05 AM
  • First Quarter12 · 11:25 PM
  • Full Moon20 · 10:57 AM
  • Last Quarter28 · 4:05 PM
November 2021
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  • New Moon4 · 5:15 PM
  • First Quarter11 · 7:46 AM
  • Full Moon19 · 3:58 AM
  • Last Quarter27 · 7:28 AM
December 2021
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  • New Moon4 · 2:43 AM
  • First Quarter10 · 8:36 PM
  • Full Moon18 · 11:36 PM
  • Last Quarter26 · 9:24 PM

Times are US Eastern (EST or EDT), rounded to the minute.

Full Moon Calendar 2021

Full moonDateWeekdayTime (ET)Note
Wolf MoonJanuary 28Thursday2:16 PM—
Snow MoonFebruary 27Saturday3:17 AM—
Worm MoonMarch 28Sunday2:48 PM—
Pink MoonApril 26Monday11:31 PM—
Flower MoonMay 26Wednesday7:14 AM—
Strawberry MoonJune 24Thursday2:40 PM—
Buck MoonJuly 23Friday10:37 PM—
Sturgeon MoonAugust 22Sunday8:02 AMBlue Moon: third of four full moons this season
Harvest MoonSeptember 20Monday7:55 PM—
Hunter's MoonOctober 20Wednesday10:57 AM—
Beaver MoonNovember 19Friday3:58 AM—
Cold MoonDecember 18Saturday11:36 PM—

The names are the traditional ones listed by The Old Farmer's Almanac, one per calendar month. Two depend on the September equinox instead: the Harvest Moon is the full moon nearest the equinox and the Hunter's Moon is the one after it, so in years when the Harvest Moon falls in October, September keeps the name Corn Moon. Supermoons are not marked, because there is no single agreed distance at which a full moon counts as one.

The Four Moon Phases

🌑 New moon:
the Moon is between Earth and Sun and its lit side faces away from us. It is not visible.
🌓 First quarter:
about a week later, the right half is lit (seen from the Northern Hemisphere). Visible in the afternoon and evening.
🌕 Full moon:
the Moon is opposite the Sun and fully lit. It rises around sunset and sets around sunrise.
🌗 Last quarter:
the left half is lit. It rises around midnight and is visible in the morning.

Why Dates Differ Between Calendars

A moon phase is an instant, not a day: it happens at the same moment worldwide, and the calendar date depends on the time zone. The average cycle from one new moon to the next is 29.53 days, so most years have 12 full moons and some have 13. This calendar uses US Eastern time; a European or Australian moon calendar can show the same phase one day later.

2021 Moon Calendar FAQ

How many full moons are in 2021?

2021 has 12 full moons and 12 new moons (US Eastern time). The first full moon is on Thu, Jan 28 and the last on Sat, Dec 18.

Is there a blue moon in 2021?

Yes: Sun, Aug 22 is the third of four full moons in one astronomical season, the older "seasonal" Blue Moon.

When is the Harvest Moon in 2021?

The Harvest Moon is the full moon closest to the September equinox. In 2021 it is on Mon, Sep 20 at 7:55 PM ET.

Which time zone are these moon phase dates in?

All dates and times are US Eastern time, adjusted for daylight saving time. A phase happens at the same instant everywhere, so in Pacific time it is three hours earlier on the clock, and a phase shortly after midnight Eastern falls on the previous day in Central, Mountain and Pacific time.

Print a 2021 Moon Calendar

The builder does not add moon phases on its own: open 2021, add the full moons you want as events (for example "Wolf Moon" on January 28), and export a PDF.

Customize the 2021 Calendar