Moon Calendar for May, 2031
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Thursday, May 1, 2031 | First Quarter | 65.58% | π |
| Friday, May 2, 2031 | Waxing Gibbous | 74.78% | π |
| Saturday, May 3, 2031 | Waxing Gibbous | 83.22% | π |
| Sunday, May 4, 2031 | Waxing Gibbous | 90.45% | π |
| Monday, May 5, 2031 | Waxing Gibbous | 95.96% | π |
| Tuesday, May 6, 2031 | Full Moon | 99.24% | π |
| Wednesday, May 7, 2031 | Full Moon | 99.9% | π |
| Thursday, May 8, 2031 | Full Moon | 97.73% | π |
| Friday, May 9, 2031 | Waning Gibbous | 92.77% | π |
| Saturday, May 10, 2031 | Waning Gibbous | 85.36% | π |
| Sunday, May 11, 2031 | Waning Gibbous | 76.04% | π |
| Monday, May 12, 2031 | Last Quarter | 65.45% | π |
| Tuesday, May 13, 2031 | Last Quarter | 54.26% | π |
| Wednesday, May 14, 2031 | Last Quarter | 43.09% | π |
| Thursday, May 15, 2031 | Last Quarter | 32.48% | π |
| Friday, May 16, 2031 | Waning Crescent | 22.88% | π |
| Saturday, May 17, 2031 | Waning Crescent | 14.68% | π |
| Sunday, May 18, 2031 | Waning Crescent | 8.15% | π |
| Monday, May 19, 2031 | New Moon | 3.48% | π |
| Tuesday, May 20, 2031 | New Moon | 0.76% | π |
| Wednesday, May 21, 2031 | New Moon | 0.01% | π |
| Thursday, May 22, 2031 | New Moon | 1.19% | π |
| Friday, May 23, 2031 | Waxing Crescent | 4.17% | π |
| Saturday, May 24, 2031 | Waxing Crescent | 8.79% | π |
| Sunday, May 25, 2031 | Waxing Crescent | 14.88% | π |
| Monday, May 26, 2031 | Waxing Crescent | 22.23% | π |
| Tuesday, May 27, 2031 | Waxing Crescent | 30.61% | π |
| Wednesday, May 28, 2031 | First Quarter | 39.79% | π |
| Thursday, May 29, 2031 | First Quarter | 49.52% | π |
| Friday, May 30, 2031 | First Quarter | 59.51% | π |
| Saturday, May 31, 2031 | Waxing Gibbous | 69.41% | π |