Moon Phases in San Juan
Moonrise, Moonset, Phase, Illumination and Age for December1988
Today's Moon
Calculated for 2026-05-07
- Moonrise
- 23:58
- Phase
- Waning Gibbous
- Age of Moon
- 19.7 days
- Moonset
- 10:20
- Illumination
- 75%
- Next Full Moon
- 2026-05-31
Today's Sun
Calculated for 2026-05-07
- Sunrise
- 05:52
- Sunset
- 18:49
- Day Length
- 12h 56m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Dec 1 Thu | 00:10 | 12:49 | Last Quarter | 54% | 21.8 days | 404324 km |
| Dec 2 Fri | 00:58 | 13:21 | Last Quarter | 43% | 22.8 days | 404096 km |
| Dec 3 Sat | 01:45 | 13:52 | Last Quarter | 33% | 23.8 days | 402507 km |
| Dec 4 Sun | 02:32 | 14:24 | Waning Crescent | 23% | 24.8 days | 399703 km |
| Dec 5 Mon | 03:22 | 15:00 | Waning Crescent | 15% | 25.8 days | 395940 km |
| Dec 6 Tue | 04:14 | 15:39 | Waning Crescent | 8% | 26.8 days | 391545 km |
| Dec 7 Wed | 05:10 | 16:23 | Waning Crescent | 3% | 27.8 days | 386880 km |
| Dec 8 Thu | 06:08 | 17:15 | New Moon | 1% | 28.8 days | 382300 km |
| Dec 9 Fri | 07:09 | 18:11 | Waxing Crescent | 0% | 0.3 days | 378116 km |
| Dec 10 Sat | 08:08 | 19:13 | Waxing Crescent | 2% | 1.3 days | 374572 km |
| Dec 11 Sun | 09:04 | 20:16 | Waxing Crescent | 6% | 2.3 days | 371834 km |
| Dec 12 Mon | 09:55 | 21:20 | Waxing Crescent | 12% | 3.3 days | 369987 km |
| Dec 13 Tue | 10:41 | 22:20 | Waxing Crescent | 19% | 4.3 days | 369040 km |
| Dec 14 Wed | 11:23 | 23:19 | Waxing Crescent | 28% | 5.3 days | 368946 km |
| Dec 15 Thu | 12:02 | - | First Quarter | 38% | 6.3 days | 369614 km |
| Dec 16 Fri | 12:40 | 00:16 | First Quarter | 49% | 7.3 days | 370931 km |
| Dec 17 Sat | 13:18 | 01:13 | First Quarter | 59% | 8.3 days | 372780 km |
| Dec 18 Sun | 13:59 | 02:11 | Waxing Gibbous | 69% | 9.3 days | 375055 km |
| Dec 19 Mon | 14:43 | 03:11 | Waxing Gibbous | 79% | 10.3 days | 377670 km |
| Dec 20 Tue | 15:32 | 04:13 | Waxing Gibbous | 87% | 11.3 days | 380561 km |
| Dec 21 Wed | 16:26 | 05:16 | Waxing Gibbous | 93% | 12.3 days | 383683 km |
| Dec 22 Thu | 17:24 | 06:18 | Waxing Gibbous | 97% | 13.3 days | 386991 km |
| Dec 23 Fri | 18:23 | 07:17 | Full Moon | 100% | 14.3 days | 390424 km |
| Dec 24 Sat | 19:23 | 08:10 | Waning Gibbous | 100% | 15.3 days | 393884 km |
| Dec 25 Sun | 20:19 | 08:56 | Waning Gibbous | 97% | 16.3 days | 397219 km |
| Dec 26 Mon | 21:12 | 09:38 | Waning Gibbous | 93% | 17.3 days | 400223 km |
| Dec 27 Tue | 22:02 | 10:14 | Waning Gibbous | 87% | 18.3 days | 402647 km |
| Dec 28 Wed | 22:50 | 10:47 | Waning Gibbous | 79% | 19.3 days | 404226 km |
| Dec 29 Thu | 23:37 | 11:19 | Waning Gibbous | 70% | 20.3 days | 404718 km |
| Dec 30 Fri | - | 11:50 | Last Quarter | 59% | 21.3 days | 403941 km |
| Dec 31 Sat | 00:24 | 12:21 | Last Quarter | 49% | 22.3 days | 401822 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.