Moon Calendar for May, 2018
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2018 | Waning Gibbous | 95.85% | π |
| Wednesday, May 2, 2018 | Waning Gibbous | 91.04% | π |
| Thursday, May 3, 2018 | Waning Gibbous | 84.76% | π |
| Friday, May 4, 2018 | Waning Gibbous | 77.29% | π |
| Saturday, May 5, 2018 | Last Quarter | 68.89% | π |
| Sunday, May 6, 2018 | Last Quarter | 59.84% | π |
| Monday, May 7, 2018 | Last Quarter | 50.39% | π |
| Tuesday, May 8, 2018 | Last Quarter | 40.79% | π |
| Wednesday, May 9, 2018 | Last Quarter | 31.36% | π |
| Thursday, May 10, 2018 | Waning Crescent | 22.42% | π |
| Friday, May 11, 2018 | Waning Crescent | 14.36% | π |
| Saturday, May 12, 2018 | Waning Crescent | 7.66% | π |
| Sunday, May 13, 2018 | New Moon | 2.81% | π |
| Monday, May 14, 2018 | New Moon | 0.28% | π |
| Tuesday, May 15, 2018 | New Moon | 0.42% | π |
| Wednesday, May 16, 2018 | New Moon | 3.38% | π |
| Thursday, May 17, 2018 | Waxing Crescent | 9.02% | π |
| Friday, May 18, 2018 | Waxing Crescent | 16.99% | π |
| Saturday, May 19, 2018 | Waxing Crescent | 26.72% | π |
| Sunday, May 20, 2018 | First Quarter | 37.55% | π |
| Monday, May 21, 2018 | First Quarter | 48.83% | π |
| Tuesday, May 22, 2018 | First Quarter | 59.94% | π |
| Wednesday, May 23, 2018 | Waxing Gibbous | 70.37% | π |
| Thursday, May 24, 2018 | Waxing Gibbous | 79.66% | π |
| Friday, May 25, 2018 | Waxing Gibbous | 87.46% | π |
| Saturday, May 26, 2018 | Waxing Gibbous | 93.49% | π |
| Sunday, May 27, 2018 | Full Moon | 97.59% | π |
| Monday, May 28, 2018 | Full Moon | 99.7% | π |
| Tuesday, May 29, 2018 | Full Moon | 99.81% | π |
| Wednesday, May 30, 2018 | Full Moon | 98.01% | π |
| Thursday, May 31, 2018 | Waning Gibbous | 94.44% | π |