Moon Calendar for May, 2018
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2018 | Waning Gibbous | 96.14% | π |
| Wednesday, May 2, 2018 | Waning Gibbous | 91.46% | π |
| Thursday, May 3, 2018 | Waning Gibbous | 85.28% | π |
| Friday, May 4, 2018 | Waning Gibbous | 77.89% | π |
| Saturday, May 5, 2018 | Waning Gibbous | 69.55% | π |
| Sunday, May 6, 2018 | Last Quarter | 60.54% | π |
| Monday, May 7, 2018 | Last Quarter | 51.11% | π |
| Tuesday, May 8, 2018 | Last Quarter | 41.52% | π |
| Wednesday, May 9, 2018 | Last Quarter | 32.06% | π |
| Thursday, May 10, 2018 | Waning Crescent | 23.06% | π |
| Friday, May 11, 2018 | Waning Crescent | 14.93% | π |
| Saturday, May 12, 2018 | Waning Crescent | 8.11% | π |
| Sunday, May 13, 2018 | New Moon | 3.1% | π |
| Monday, May 14, 2018 | New Moon | 0.38% | π |
| Tuesday, May 15, 2018 | New Moon | 0.31% | π |
| Wednesday, May 16, 2018 | New Moon | 3.06% | π |
| Thursday, May 17, 2018 | Waxing Crescent | 8.51% | π |
| Friday, May 18, 2018 | Waxing Crescent | 16.32% | π |
| Saturday, May 19, 2018 | Waxing Crescent | 25.94% | π |
| Sunday, May 20, 2018 | First Quarter | 36.71% | π |
| Monday, May 21, 2018 | First Quarter | 47.98% | π |
| Tuesday, May 22, 2018 | First Quarter | 59.12% | π |
| Wednesday, May 23, 2018 | Waxing Gibbous | 69.62% | π |
| Thursday, May 24, 2018 | Waxing Gibbous | 79.01% | π |
| Friday, May 25, 2018 | Waxing Gibbous | 86.93% | π |
| Saturday, May 26, 2018 | Waxing Gibbous | 93.1% | π |
| Sunday, May 27, 2018 | Full Moon | 97.36% | π |
| Monday, May 28, 2018 | Full Moon | 99.61% | π |
| Tuesday, May 29, 2018 | Full Moon | 99.87% | π |
| Wednesday, May 30, 2018 | Full Moon | 98.21% | π |
| Thursday, May 31, 2018 | Waning Gibbous | 94.77% | π |