Moon Calendar for May, 2018
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2018 | Waning Gibbous | 95.59% | π |
| Wednesday, May 2, 2018 | Waning Gibbous | 90.67% | π |
| Thursday, May 3, 2018 | Waning Gibbous | 84.31% | π |
| Friday, May 4, 2018 | Waning Gibbous | 76.77% | π |
| Saturday, May 5, 2018 | Last Quarter | 68.32% | π |
| Sunday, May 6, 2018 | Last Quarter | 59.24% | π |
| Monday, May 7, 2018 | Last Quarter | 49.77% | π |
| Tuesday, May 8, 2018 | Last Quarter | 40.18% | π |
| Wednesday, May 9, 2018 | Waning Crescent | 30.76% | π |
| Thursday, May 10, 2018 | Waning Crescent | 21.86% | π |
| Friday, May 11, 2018 | Waning Crescent | 13.88% | π |
| Saturday, May 12, 2018 | Waning Crescent | 7.29% | π |
| Sunday, May 13, 2018 | New Moon | 2.57% | π |
| Monday, May 14, 2018 | New Moon | 0.21% | π |
| Tuesday, May 15, 2018 | New Moon | 0.53% | π |
| Wednesday, May 16, 2018 | New Moon | 3.66% | π |
| Thursday, May 17, 2018 | Waxing Crescent | 9.48% | π |
| Friday, May 18, 2018 | Waxing Crescent | 17.58% | π |
| Saturday, May 19, 2018 | Waxing Crescent | 27.4% | π |
| Sunday, May 20, 2018 | First Quarter | 38.27% | π |
| Monday, May 21, 2018 | First Quarter | 49.56% | π |
| Tuesday, May 22, 2018 | First Quarter | 60.65% | π |
| Wednesday, May 23, 2018 | Waxing Gibbous | 71.01% | π |
| Thursday, May 24, 2018 | Waxing Gibbous | 80.22% | π |
| Friday, May 25, 2018 | Waxing Gibbous | 87.9% | π |
| Saturday, May 26, 2018 | Waxing Gibbous | 93.82% | π |
| Sunday, May 27, 2018 | Full Moon | 97.79% | π |
| Monday, May 28, 2018 | Full Moon | 99.76% | π |
| Tuesday, May 29, 2018 | Full Moon | 99.75% | π |
| Wednesday, May 30, 2018 | Full Moon | 97.83% | π |
| Thursday, May 31, 2018 | Waning Gibbous | 94.15% | π |