Moon Calendar for May, 2031
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Thursday, May 1, 2031 | First Quarter | 68.13% | π |
| Friday, May 2, 2031 | Waxing Gibbous | 77.16% | π |
| Saturday, May 3, 2031 | Waxing Gibbous | 85.33% | π |
| Sunday, May 4, 2031 | Waxing Gibbous | 92.14% | π |
| Monday, May 5, 2031 | Full Moon | 97.09% | π |
| Tuesday, May 6, 2031 | Full Moon | 99.7% | π |
| Wednesday, May 7, 2031 | Full Moon | 99.6% | π |
| Thursday, May 8, 2031 | Full Moon | 96.65% | π |
| Friday, May 9, 2031 | Waning Gibbous | 90.98% | π |
| Saturday, May 10, 2031 | Waning Gibbous | 82.99% | π |
| Sunday, May 11, 2031 | Waning Gibbous | 73.26% | π |
| Monday, May 12, 2031 | Last Quarter | 62.44% | π |
| Tuesday, May 13, 2031 | Last Quarter | 51.2% | π |
| Wednesday, May 14, 2031 | Last Quarter | 40.13% | π |
| Thursday, May 15, 2031 | Waning Crescent | 29.75% | π |
| Friday, May 16, 2031 | Waning Crescent | 20.51% | π |
| Saturday, May 17, 2031 | Waning Crescent | 12.74% | π |
| Sunday, May 18, 2031 | Waning Crescent | 6.69% | π |
| Monday, May 19, 2031 | New Moon | 2.54% | π |
| Tuesday, May 20, 2031 | New Moon | 0.36% | π |
| Wednesday, May 21, 2031 | New Moon | 0.15% | π |
| Thursday, May 22, 2031 | New Moon | 1.82% | π |
| Friday, May 23, 2031 | Waxing Crescent | 5.27% | π |
| Saturday, May 24, 2031 | Waxing Crescent | 10.31% | π |
| Sunday, May 25, 2031 | Waxing Crescent | 16.76% | π |
| Monday, May 26, 2031 | Waxing Crescent | 24.41% | π |
| Tuesday, May 27, 2031 | First Quarter | 33.03% | π |
| Wednesday, May 28, 2031 | First Quarter | 42.39% | π |
| Thursday, May 29, 2031 | First Quarter | 52.22% | π |
| Friday, May 30, 2031 | First Quarter | 62.22% | π |
| Saturday, May 31, 2031 | Waxing Gibbous | 72.03% | π |