Moon Phases in San Mateo
Moonrise, Moonset, Phase, Illumination and Age for December2019
Today's Moon
Calculated for 2026-02-01
- Moonrise
- 18:00
- Phase
- Waxing Gibbous
- Age of Moon
- 12.8 days
- Moonset
- 05:51
- Illumination
- 96%
- Next Full Moon
- 2026-02-02
Today's Sun
Calculated for 2026-02-01
- Sunrise
- 06:07
- Sunset
- 18:00
- Day Length
- 11h 53m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Dec 1 Sun | 10:11 | 22:15 | Waxing Crescent | 17% | 4 days | 405357 km |
| Dec 2 Mon | 10:57 | 23:03 | Waxing Crescent | 26% | 5 days | 403981 km |
| Dec 3 Tue | 11:41 | 23:49 | First Quarter | 36% | 6 days | 401418 km |
| Dec 4 Wed | 12:21 | - | First Quarter | 46% | 7 days | 397641 km |
| Dec 5 Thu | 13:01 | 00:33 | First Quarter | 57% | 8 days | 392752 km |
| Dec 6 Fri | 13:40 | 01:17 | First Quarter | 67% | 9 days | 386994 km |
| Dec 7 Sat | 14:19 | 02:00 | Waxing Gibbous | 77% | 10 days | 380734 km |
| Dec 8 Sun | 15:00 | 02:44 | Waxing Gibbous | 85% | 11 days | 374431 km |
| Dec 9 Mon | 15:43 | 03:31 | Waxing Gibbous | 92% | 12 days | 368586 km |
| Dec 10 Tue | 16:29 | 04:19 | Waxing Gibbous | 97% | 13 days | 363684 km |
| Dec 11 Wed | 17:20 | 05:11 | Full Moon | 99% | 14 days | 363104 km |
| Dec 12 Thu | 18:14 | 06:06 | Waning Gibbous | 100% | 15 days | 363104 km |
| Dec 13 Fri | 19:11 | 07:04 | Waning Gibbous | 98% | 16 days | 363104 km |
| Dec 14 Sat | 20:10 | 08:02 | Waning Gibbous | 94% | 17 days | 363104 km |
| Dec 15 Sun | 21:09 | 08:59 | Waning Gibbous | 88% | 18 days | 363104 km |
| Dec 16 Mon | 22:06 | 09:54 | Waning Gibbous | 81% | 19 days | 367559 km |
| Dec 17 Tue | 23:01 | 10:46 | Waning Gibbous | 72% | 20 days | 372920 km |
| Dec 18 Wed | 23:55 | 11:35 | Last Quarter | 62% | 21 days | 378683 km |
| Dec 19 Thu | - | 12:23 | Last Quarter | 51% | 22 days | 384414 km |
| Dec 20 Fri | 00:47 | 13:10 | Last Quarter | 41% | 23 days | 389743 km |
| Dec 21 Sat | 01:40 | 13:57 | Waning Crescent | 30% | 24 days | 394400 km |
| Dec 22 Sun | 02:32 | 14:45 | Waning Crescent | 21% | 25 days | 398236 km |
| Dec 23 Mon | 03:27 | 15:36 | Waning Crescent | 13% | 26 days | 401212 km |
| Dec 24 Tue | 04:22 | 16:29 | Waning Crescent | 7% | 27 days | 403374 km |
| Dec 25 Wed | 05:19 | 17:24 | Waning Crescent | 2% | 28 days | 404814 km |
| Dec 26 Thu | 06:15 | 18:18 | New Moon | 0% | 29 days | 405624 km |
| Dec 27 Fri | 07:10 | 19:13 | Waxing Crescent | 0% | 0.5 days | 405696 km |
| Dec 28 Sat | 08:01 | 20:05 | Waxing Crescent | 3% | 1.5 days | 405504 km |
| Dec 29 Sun | 08:49 | 20:55 | Waxing Crescent | 7% | 2.5 days | 404498 km |
| Dec 30 Mon | 09:35 | 21:42 | Waxing Crescent | 13% | 3.5 days | 402726 km |
| Dec 31 Tue | 10:16 | 22:27 | Waxing Crescent | 21% | 4.5 days | 400078 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.