2031 Moon Phases
Approximate new moon and full moon dates for 2031.
These dates are from a simplified synodic-month calculation, accurate to within roughly a day. Good for planning, not precise enough for professional astronomical use.
| Month | New Moon | Full Moon |
|---|---|---|
| January | Jan 22 | Jan 7 |
| February | Feb 21 | Feb 6 |
| March | Mar 22 | Mar 7 |
| April | Apr 21 | Apr 6 |
| May | May 20 | May 6 |
| June | Jun 19 | Jun 4 |
| July | Jul 18 | Jul 4 |
| August | Aug 17 | Aug 2 |
| September | Sep 15 | Sep 1 |
| October | Oct 15 | Oct 1 |
| November | Nov 13 | Nov 1 |
| December | Dec 13 | Dec 1 |