Moon Phases in Seattle
Moonrise, Moonset, Phase, Illumination and Age for December1955
Today's Moon
Calculated for 2026-08-05
- Moonrise
- 23:16
- Phase
- Last Quarter
- Age of Moon
- 20.8 days
- Moonset
- 14:09
- Illumination
- 65%
- Next Full Moon
- 2026-08-27
Today's Sun
Calculated for 2026-08-05
- Sunrise
- 05:50
- Sunset
- 20:39
- Day Length
- 14h 48m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Dec 1 Thu | 18:48 | 09:43 | Waning Gibbous | 97% | 16.3 days | 405665 km |
| Dec 2 Fri | 20:07 | 10:27 | Waning Gibbous | 93% | 17.3 days | 405086 km |
| Dec 3 Sat | 21:26 | 11:02 | Waning Gibbous | 87% | 18.3 days | 403727 km |
| Dec 4 Sun | 22:41 | 11:32 | Waning Gibbous | 79% | 19.3 days | 401456 km |
| Dec 5 Mon | 23:54 | 11:57 | Waning Gibbous | 69% | 20.3 days | 398183 km |
| Dec 6 Tue | - | 12:19 | Last Quarter | 59% | 21.3 days | 393902 km |
| Dec 7 Wed | 01:04 | 12:42 | Last Quarter | 49% | 22.3 days | 388723 km |
| Dec 8 Thu | 02:12 | 13:05 | Last Quarter | 38% | 23.3 days | 382888 km |
| Dec 9 Fri | 03:20 | 13:31 | Waning Crescent | 28% | 24.3 days | 376757 km |
| Dec 10 Sat | 04:25 | 13:59 | Waning Crescent | 19% | 25.3 days | 370777 km |
| Dec 11 Sun | 05:29 | 14:33 | Waning Crescent | 12% | 26.3 days | 365429 km |
| Dec 12 Mon | 06:28 | 15:12 | Waning Crescent | 6% | 27.3 days | 363104 km |
| Dec 13 Tue | 07:23 | 15:58 | Waning Crescent | 2% | 28.3 days | 363104 km |
| Dec 14 Wed | 08:10 | 16:50 | New Moon | 0% | 29.3 days | 363104 km |
| Dec 15 Thu | 08:51 | 17:48 | Waxing Crescent | 1% | 0.7 days | 363104 km |
| Dec 16 Fri | 09:26 | 18:49 | Waxing Crescent | 3% | 1.7 days | 363104 km |
| Dec 17 Sat | 09:55 | 19:52 | Waxing Crescent | 8% | 2.7 days | 364958 km |
| Dec 18 Sun | 10:20 | 20:56 | Waxing Crescent | 15% | 3.7 days | 370283 km |
| Dec 19 Mon | 10:43 | 22:01 | Waxing Crescent | 23% | 4.7 days | 376325 km |
| Dec 20 Tue | 11:05 | 23:07 | First Quarter | 33% | 5.7 days | 382588 km |
| Dec 21 Wed | 11:27 | - | First Quarter | 43% | 6.7 days | 388598 km |
| Dec 22 Thu | 11:49 | 00:14 | First Quarter | 54% | 7.7 days | 393959 km |
| Dec 23 Fri | 12:14 | 01:25 | First Quarter | 64% | 8.7 days | 398389 km |
| Dec 24 Sat | 12:44 | 02:38 | Waxing Gibbous | 74% | 9.7 days | 401738 km |
| Dec 25 Sun | 13:21 | 03:55 | Waxing Gibbous | 83% | 10.7 days | 403989 km |
| Dec 26 Mon | 14:08 | 05:11 | Waxing Gibbous | 90% | 11.7 days | 405223 km |
| Dec 27 Tue | 15:07 | 06:22 | Waxing Gibbous | 95% | 12.7 days | 405585 km |
| Dec 28 Wed | 16:18 | 07:25 | Full Moon | 99% | 13.7 days | 405229 km |
| Dec 29 Thu | 17:37 | 08:16 | Waxing Gibbous | 100% | 14.7 days | 404284 km |
| Dec 30 Fri | 18:59 | 08:57 | Waning Gibbous | 99% | 15.7 days | 402820 km |
| Dec 31 Sat | 20:19 | 09:31 | Waning Gibbous | 96% | 16.7 days | 400847 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.