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Astronomical annual overview

Moon calendar 2031

Every date of the Moon’s four primary astronomical phases. Times use the Europe/Berlin time zone.

Europe/Berlin
Astronomical dates

Primary Moon phases in 2031

The list gives the instants of new moon, first quarter, full moon and last quarter. Every date and time is displayed in the stated time zone.

New moon 12 dates
First quarter 12 dates
Full moon 13 dates
Last quarter 12 dates

January

01
  1. Full moon 19:25 CET
  2. Last quarter 13:47 CET
  3. New moon 05:30 CET
  4. First quarter 08:43 CET

February

02
  1. Full moon 13:46 CET
  2. Last quarter 23:49 CET
  3. New moon 16:48 CET

March

03
  1. First quarter 05:02 CET
  2. Full moon 05:29 CET
  3. Last quarter 07:35 CET
  4. New moon 04:49 CET
  5. First quarter 02:32 CEST

April

04
  1. Full moon 19:21 CEST
  2. Last quarter 14:57 CEST
  3. New moon 18:57 CEST
  4. First quarter 21:19 CEST

May

05
  1. Full moon 05:39 CEST
  2. Last quarter 21:06 CEST
  3. New moon 09:17 CEST
  4. First quarter 13:19 CEST

June

06
  1. Full moon 13:58 CEST
  2. Last quarter 04:20 CEST
  3. New moon 00:24 CEST
  4. First quarter 02:18 CEST

July

07
  1. Full moon 21:01 CEST
  2. Last quarter 13:49 CEST
  3. New moon 15:40 CEST
  4. First quarter 12:34 CEST

August

08
  1. Full moon 03:45 CEST
  2. Last quarter 02:23 CEST
  3. New moon 06:32 CEST
  4. First quarter 20:39 CEST

September

09
  1. Full moon 11:20 CEST
  2. Last quarter 18:14 CEST
  3. New moon 20:46 CEST
  4. First quarter 03:19 CEST
  5. Full moon 20:57 CEST

October

10
  1. Last quarter 12:50 CEST
  2. New moon 10:20 CEST
  3. First quarter 09:36 CEST
  4. Full moon 08:32 CET

November

11
  1. Last quarter 08:02 CET
  2. New moon 22:09 CET
  3. First quarter 15:44 CET
  4. Full moon 00:18 CET

December

12
  1. Last quarter 04:19 CET
  2. New moon 10:05 CET
  3. First quarter 01:00 CET
  4. Full moon 18:32 CET

Moon phases are global astronomical instants. Times use the configured application zone; date and time can differ in other zones.

Understanding Moon phases

The four primary phases at a glance

A complete phase cycle lasts about 29.5 days on average. The changing shape is caused by the relative positions of the Sun, Earth and Moon, not by Earth’s shadow, which is relevant only during a lunar eclipse.

New moon

The Moon is approximately between Earth and the Sun, so its illuminated side is barely visible from Earth.

First quarter

About a week after new moon, half of the visible lunar disc is illuminated and continues to wax.

Full moon

Earth is approximately between the Sun and the Moon, and the Earth-facing side appears fully illuminated.

Last quarter

About a week after full moon, half of the visible disc is illuminated again and continues to wane.

← Back to the calendar overview Calculate Moon phases