Moon Calendar for May, 2018
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2018 | Full Moon | 97.86% | π |
| Wednesday, May 2, 2018 | Waning Gibbous | 94.04% | π |
| Thursday, May 3, 2018 | Waning Gibbous | 88.58% | π |
| Friday, May 4, 2018 | Waning Gibbous | 81.77% | π |
| Saturday, May 5, 2018 | Waning Gibbous | 73.88% | π |
| Sunday, May 6, 2018 | Last Quarter | 65.18% | π |
| Monday, May 7, 2018 | Last Quarter | 55.93% | π |
| Tuesday, May 8, 2018 | Last Quarter | 46.38% | π |
| Wednesday, May 9, 2018 | Last Quarter | 36.82% | π |
| Thursday, May 10, 2018 | Waning Crescent | 27.54% | π |
| Friday, May 11, 2018 | Waning Crescent | 18.92% | π |
| Saturday, May 12, 2018 | Waning Crescent | 11.37% | π |
| Sunday, May 13, 2018 | Waning Crescent | 5.38% | π |
| Monday, May 14, 2018 | New Moon | 1.45% | π |
| Tuesday, May 15, 2018 | New Moon | 0% | π |
| Wednesday, May 16, 2018 | New Moon | 1.31% | π |
| Thursday, May 17, 2018 | Waxing Crescent | 5.42% | π |
| Friday, May 18, 2018 | Waxing Crescent | 12.1% | π |
| Saturday, May 19, 2018 | Waxing Crescent | 20.88% | π |
| Sunday, May 20, 2018 | First Quarter | 31.15% | π |
| Monday, May 21, 2018 | First Quarter | 42.24% | π |
| Tuesday, May 22, 2018 | First Quarter | 53.52% | π |
| Wednesday, May 23, 2018 | First Quarter | 64.41% | π |
| Thursday, May 24, 2018 | Waxing Gibbous | 74.41% | π |
| Friday, May 25, 2018 | Waxing Gibbous | 83.12% | π |
| Saturday, May 26, 2018 | Waxing Gibbous | 90.2% | π |
| Sunday, May 27, 2018 | Waxing Gibbous | 95.45% | π |
| Monday, May 28, 2018 | Full Moon | 98.72% | π |
| Tuesday, May 29, 2018 | Full Moon | 99.98% | π |
| Wednesday, May 30, 2018 | Full Moon | 99.28% | π |
| Thursday, May 31, 2018 | Full Moon | 96.72% | π |