Moon Calendar for May, 2018
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2018 | Waning Gibbous | 95.9% | π |
| Wednesday, May 2, 2018 | Waning Gibbous | 91.12% | π |
| Thursday, May 3, 2018 | Waning Gibbous | 84.85% | π |
| Friday, May 4, 2018 | Waning Gibbous | 77.4% | π |
| Saturday, May 5, 2018 | Last Quarter | 69.01% | π |
| Sunday, May 6, 2018 | Last Quarter | 59.97% | π |
| Monday, May 7, 2018 | Last Quarter | 50.52% | π |
| Tuesday, May 8, 2018 | Last Quarter | 40.92% | π |
| Wednesday, May 9, 2018 | Last Quarter | 31.48% | π |
| Thursday, May 10, 2018 | Waning Crescent | 22.53% | π |
| Friday, May 11, 2018 | Waning Crescent | 14.46% | π |
| Saturday, May 12, 2018 | Waning Crescent | 7.74% | π |
| Sunday, May 13, 2018 | New Moon | 2.87% | π |
| Monday, May 14, 2018 | New Moon | 0.3% | π |
| Tuesday, May 15, 2018 | New Moon | 0.4% | π |
| Wednesday, May 16, 2018 | New Moon | 3.32% | π |
| Thursday, May 17, 2018 | Waxing Crescent | 8.93% | π |
| Friday, May 18, 2018 | Waxing Crescent | 16.87% | π |
| Saturday, May 19, 2018 | Waxing Crescent | 26.58% | π |
| Sunday, May 20, 2018 | First Quarter | 37.4% | π |
| Monday, May 21, 2018 | First Quarter | 48.67% | π |
| Tuesday, May 22, 2018 | First Quarter | 59.8% | π |
| Wednesday, May 23, 2018 | Waxing Gibbous | 70.24% | π |
| Thursday, May 24, 2018 | Waxing Gibbous | 79.55% | π |
| Friday, May 25, 2018 | Waxing Gibbous | 87.36% | π |
| Saturday, May 26, 2018 | Waxing Gibbous | 93.42% | π |
| Sunday, May 27, 2018 | Full Moon | 97.55% | π |
| Monday, May 28, 2018 | Full Moon | 99.68% | π |
| Tuesday, May 29, 2018 | Full Moon | 99.82% | π |
| Wednesday, May 30, 2018 | Full Moon | 98.05% | π |
| Thursday, May 31, 2018 | Waning Gibbous | 94.5% | π |