Moon Calendar for May, 2031
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Thursday, May 1, 2031 | First Quarter | 68.58% | π |
| Friday, May 2, 2031 | Waxing Gibbous | 77.59% | π |
| Saturday, May 3, 2031 | Waxing Gibbous | 85.69% | π |
| Sunday, May 4, 2031 | Waxing Gibbous | 92.43% | π |
| Monday, May 5, 2031 | Full Moon | 97.27% | π |
| Tuesday, May 6, 2031 | Full Moon | 99.76% | π |
| Wednesday, May 7, 2031 | Full Moon | 99.52% | π |
| Thursday, May 8, 2031 | Full Moon | 96.43% | π |
| Friday, May 9, 2031 | Waning Gibbous | 90.64% | π |
| Saturday, May 10, 2031 | Waning Gibbous | 82.55% | π |
| Sunday, May 11, 2031 | Waning Gibbous | 72.75% | π |
| Monday, May 12, 2031 | Last Quarter | 61.9% | π |
| Tuesday, May 13, 2031 | Last Quarter | 50.65% | π |
| Wednesday, May 14, 2031 | Last Quarter | 39.6% | π |
| Thursday, May 15, 2031 | Waning Crescent | 29.27% | π |
| Friday, May 16, 2031 | Waning Crescent | 20.09% | π |
| Saturday, May 17, 2031 | Waning Crescent | 12.4% | π |
| Sunday, May 18, 2031 | Waning Crescent | 6.45% | π |
| Monday, May 19, 2031 | New Moon | 2.39% | π |
| Tuesday, May 20, 2031 | New Moon | 0.31% | π |
| Wednesday, May 21, 2031 | New Moon | 0.18% | π |
| Thursday, May 22, 2031 | New Moon | 1.95% | π |
| Friday, May 23, 2031 | Waxing Crescent | 5.48% | π |
| Saturday, May 24, 2031 | Waxing Crescent | 10.6% | π |
| Sunday, May 25, 2031 | Waxing Crescent | 17.11% | π |
| Monday, May 26, 2031 | Waxing Crescent | 24.81% | π |
| Tuesday, May 27, 2031 | First Quarter | 33.47% | π |
| Wednesday, May 28, 2031 | First Quarter | 42.86% | π |
| Thursday, May 29, 2031 | First Quarter | 52.7% | π |
| Friday, May 30, 2031 | First Quarter | 62.71% | π |
| Saturday, May 31, 2031 | Waxing Gibbous | 72.5% | π |