Moon Calendar for May, 2031
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Thursday, May 1, 2031 | First Quarter | 64.6% | π |
| Friday, May 2, 2031 | Waxing Gibbous | 73.86% | π |
| Saturday, May 3, 2031 | Waxing Gibbous | 82.4% | π |
| Sunday, May 4, 2031 | Waxing Gibbous | 89.78% | π |
| Monday, May 5, 2031 | Waxing Gibbous | 95.49% | π |
| Tuesday, May 6, 2031 | Full Moon | 99.02% | π |
| Wednesday, May 7, 2031 | Full Moon | 99.96% | π |
| Thursday, May 8, 2031 | Full Moon | 98.08% | π |
| Friday, May 9, 2031 | Waning Gibbous | 93.4% | π |
| Saturday, May 10, 2031 | Waning Gibbous | 86.22% | π |
| Sunday, May 11, 2031 | Waning Gibbous | 77.07% | π |
| Monday, May 12, 2031 | Last Quarter | 66.58% | π |
| Tuesday, May 13, 2031 | Last Quarter | 55.42% | π |
| Wednesday, May 14, 2031 | Last Quarter | 44.22% | π |
| Thursday, May 15, 2031 | Last Quarter | 33.53% | π |
| Friday, May 16, 2031 | Waning Crescent | 23.81% | π |
| Saturday, May 17, 2031 | Waning Crescent | 15.45% | π |
| Sunday, May 18, 2031 | Waning Crescent | 8.74% | π |
| Monday, May 19, 2031 | Waning Crescent | 3.87% | π |
| Tuesday, May 20, 2031 | New Moon | 0.95% | π |
| Wednesday, May 21, 2031 | New Moon | 0% | π |
| Thursday, May 22, 2031 | New Moon | 0.98% | π |
| Friday, May 23, 2031 | New Moon | 3.78% | π |
| Saturday, May 24, 2031 | Waxing Crescent | 8.25% | π |
| Sunday, May 25, 2031 | Waxing Crescent | 14.2% | π |
| Monday, May 26, 2031 | Waxing Crescent | 21.42% | π |
| Tuesday, May 27, 2031 | Waxing Crescent | 29.7% | π |
| Wednesday, May 28, 2031 | First Quarter | 38.81% | π |
| Thursday, May 29, 2031 | First Quarter | 48.5% | π |
| Friday, May 30, 2031 | First Quarter | 58.48% | π |
| Saturday, May 31, 2031 | First Quarter | 68.41% | π |