Moon Phases in San Francisco
Moonrise, Moonset, Phase, Illumination and Age for December1991
Today's Moon
Calculated for 2026-07-13
- Moonrise
- 07:30
- Phase
- New Moon
- Age of Moon
- 28.1 days
- Moonset
- 17:31
- Illumination
- 2%
- Next Full Moon
- 2026-07-29
Today's Sun
Calculated for 2026-07-13
- Sunrise
- 08:04
- Sunset
- 18:23
- Day Length
- 10h 18m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Dec 1 Sun | 03:40 | 16:56 | Waning Crescent | 29% | 24.2 days | 387293 km |
| Dec 2 Mon | 04:13 | 17:56 | Waning Crescent | 20% | 25.2 days | 381113 km |
| Dec 3 Tue | 04:50 | 18:56 | Waning Crescent | 12% | 26.2 days | 374915 km |
| Dec 4 Wed | 05:30 | 19:55 | Waning Crescent | 6% | 27.2 days | 369196 km |
| Dec 5 Thu | 06:14 | 20:51 | Waning Crescent | 2% | 28.2 days | 364427 km |
| Dec 6 Fri | 07:03 | 21:43 | New Moon | 0% | 29.2 days | 363104 km |
| Dec 7 Sat | 07:55 | 22:30 | Waxing Crescent | 0% | 0.6 days | 363104 km |
| Dec 8 Sun | 08:50 | 23:12 | Waxing Crescent | 3% | 1.6 days | 363104 km |
| Dec 9 Mon | 09:45 | 23:49 | Waxing Crescent | 8% | 2.6 days | 363104 km |
| Dec 10 Tue | 10:40 | - | Waxing Crescent | 14% | 3.6 days | 363838 km |
| Dec 11 Wed | 11:35 | 00:21 | Waxing Crescent | 22% | 4.6 days | 368139 km |
| Dec 12 Thu | 12:29 | 00:52 | First Quarter | 32% | 5.6 days | 373230 km |
| Dec 13 Fri | 13:24 | 01:21 | First Quarter | 42% | 6.6 days | 378687 km |
| Dec 14 Sat | 14:19 | 01:49 | First Quarter | 53% | 7.6 days | 384106 km |
| Dec 15 Sun | 15:17 | 02:18 | First Quarter | 63% | 8.6 days | 389154 km |
| Dec 16 Mon | 16:16 | 02:50 | Waxing Gibbous | 73% | 9.6 days | 393594 km |
| Dec 17 Tue | 17:21 | 03:25 | Waxing Gibbous | 82% | 10.6 days | 397300 km |
| Dec 18 Wed | 18:27 | 04:05 | Waxing Gibbous | 89% | 11.6 days | 400248 km |
| Dec 19 Thu | 19:36 | 04:54 | Waxing Gibbous | 95% | 12.6 days | 402485 km |
| Dec 20 Fri | 20:41 | 05:51 | Waxing Gibbous | 99% | 13.6 days | 404088 km |
| Dec 21 Sat | 21:42 | 06:56 | Full Moon | 100% | 14.6 days | 405123 km |
| Dec 22 Sun | 22:35 | 08:07 | Waning Gibbous | 99% | 15.6 days | 405611 km |
| Dec 23 Mon | 23:21 | 09:21 | Waning Gibbous | 96% | 16.6 days | 405506 km |
| Dec 24 Tue | - | 10:32 | Waning Gibbous | 91% | 17.6 days | 404707 km |
| Dec 25 Wed | 00:00 | 11:40 | Waning Gibbous | 84% | 18.6 days | 403080 km |
| Dec 26 Thu | 00:36 | 12:46 | Waning Gibbous | 76% | 19.6 days | 400499 km |
| Dec 27 Fri | 01:09 | 13:49 | Last Quarter | 66% | 20.6 days | 396898 km |
| Dec 28 Sat | 01:42 | 14:50 | Last Quarter | 56% | 21.6 days | 392306 km |
| Dec 29 Sun | 02:15 | 15:51 | Last Quarter | 45% | 22.6 days | 386880 km |
| Dec 30 Mon | 02:51 | 16:51 | Last Quarter | 35% | 23.6 days | 380901 km |
| Dec 31 Tue | 03:30 | 17:49 | Waning Crescent | 25% | 24.6 days | 374766 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.