Moon Phases in Boston
Moonrise, Moonset, Phase, Illumination and Age for May1991
Today's Moon
Calculated for 2026-02-08
- Moonrise
- 00:14
- Phase
- Last Quarter
- Age of Moon
- 20.7 days
- Moonset
- 09:15
- Illumination
- 65%
- Next Full Moon
- 2026-03-03
Today's Sun
Calculated for 2026-02-08
- Sunrise
- 07:28
- Sunset
- 16:59
- Day Length
- 9h 30m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| May 1 Wed | 23:58 | 06:09 | Waning Gibbous | 95% | 16.8 days | 369785 km |
| May 2 Thu | - | 06:53 | Waning Gibbous | 90% | 17.8 days | 368117 km |
| May 3 Fri | 00:47 | 07:48 | Waning Gibbous | 82% | 18.8 days | 367472 km |
| May 4 Sat | 01:25 | 08:52 | Waning Gibbous | 74% | 19.8 days | 367781 km |
| May 5 Sun | 01:53 | 10:01 | Last Quarter | 64% | 20.8 days | 368927 km |
| May 6 Mon | 02:14 | 11:13 | Last Quarter | 53% | 21.8 days | 370761 km |
| May 7 Tue | 02:32 | 12:26 | Last Quarter | 43% | 22.8 days | 373128 km |
| May 8 Wed | 02:47 | 13:41 | Last Quarter | 32% | 23.8 days | 375884 km |
| May 9 Thu | 03:00 | 14:56 | Waning Crescent | 23% | 24.8 days | 378908 km |
| May 10 Fri | 03:13 | 16:15 | Waning Crescent | 15% | 25.8 days | 382115 km |
| May 11 Sat | 03:28 | 17:37 | Waning Crescent | 8% | 26.8 days | 385444 km |
| May 12 Sun | 03:45 | 19:04 | Waning Crescent | 3% | 27.8 days | 388848 km |
| May 13 Mon | 04:06 | 20:33 | New Moon | 1% | 28.8 days | 392275 km |
| May 14 Tue | 04:36 | 21:59 | Waxing Crescent | 0% | 0.3 days | 395641 km |
| May 15 Wed | 05:19 | 23:14 | Waxing Crescent | 2% | 1.3 days | 398815 km |
| May 16 Thu | 06:19 | - | Waxing Crescent | 6% | 2.3 days | 401611 km |
| May 17 Fri | 07:36 | 00:11 | Waxing Crescent | 12% | 3.3 days | 403799 km |
| May 18 Sat | 09:02 | 00:52 | Waxing Crescent | 20% | 4.3 days | 405125 km |
| May 19 Sun | 10:29 | 01:21 | Waxing Crescent | 29% | 5.3 days | 405354 km |
| May 20 Mon | 11:54 | 01:42 | First Quarter | 39% | 6.3 days | 404309 km |
| May 21 Tue | 13:16 | 01:58 | First Quarter | 49% | 7.3 days | 401912 km |
| May 22 Wed | 14:34 | 02:12 | First Quarter | 60% | 8.3 days | 398212 km |
| May 23 Thu | 15:51 | 02:25 | Waxing Gibbous | 70% | 9.3 days | 393398 km |
| May 24 Fri | 17:07 | 02:39 | Waxing Gibbous | 79% | 10.3 days | 387786 km |
| May 25 Sat | 18:22 | 02:55 | Waxing Gibbous | 87% | 11.3 days | 381789 km |
| May 26 Sun | 19:36 | 03:14 | Waxing Gibbous | 93% | 12.3 days | 375872 km |
| May 27 Mon | 20:46 | 03:38 | Waxing Gibbous | 98% | 13.3 days | 370504 km |
| May 28 Tue | 21:50 | 04:08 | Full Moon | 100% | 14.3 days | 366102 km |
| May 29 Wed | 22:42 | 04:49 | Waning Gibbous | 100% | 15.3 days | 363104 km |
| May 30 Thu | 23:24 | 05:41 | Waning Gibbous | 97% | 16.3 days | 363104 km |
| May 31 Fri | 23:55 | 06:42 | Waning Gibbous | 93% | 17.3 days | 363104 km |
* Moon Phase: The shape of the illuminated (sunlit) portion of the Moon as seen by an observer on Earth.
* Illumination: The percentage of the Moon's surface illuminated by the Sun.
* Moon Age: The number of days since the last New Moon.