Moon Phases in San Mateo
Moonrise, Moonset, Phase, Illumination and Age for January2018
Today's Moon
Calculated for 2026-01-31
- Moonrise
- 17:01
- Phase
- Waxing Gibbous
- Age of Moon
- 12.5 days
- Moonset
- 04:54
- Illumination
- 94%
- Next Full Moon
- 2026-02-02
Today's Sun
Calculated for 2026-01-31
- Sunrise
- 06:07
- Sunset
- 18:00
- Day Length
- 11h 53m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Jan 1 Mon | 17:34 | 05:20 | Full Moon | 99% | 13.8 days | 365225 km |
| Jan 2 Tue | 18:38 | 06:24 | Waning Gibbous | 100% | 14.8 days | 363104 km |
| Jan 3 Wed | 19:41 | 07:26 | Waning Gibbous | 99% | 15.8 days | 363104 km |
| Jan 4 Thu | 20:40 | 08:24 | Waning Gibbous | 95% | 16.8 days | 363104 km |
| Jan 5 Fri | 21:37 | 09:19 | Waning Gibbous | 90% | 17.8 days | 363104 km |
| Jan 6 Sat | 22:29 | 10:09 | Waning Gibbous | 83% | 18.8 days | 364584 km |
| Jan 7 Sun | 23:19 | 10:55 | Waning Gibbous | 74% | 19.8 days | 368627 km |
| Jan 8 Mon | - | 11:40 | Last Quarter | 64% | 20.8 days | 373405 km |
| Jan 9 Tue | 00:06 | 12:23 | Last Quarter | 54% | 21.8 days | 378526 km |
| Jan 10 Wed | 00:53 | 13:06 | Last Quarter | 43% | 22.8 days | 383626 km |
| Jan 11 Thu | 01:40 | 13:49 | Last Quarter | 33% | 23.8 days | 388409 km |
| Jan 12 Fri | 02:27 | 14:33 | Waning Crescent | 23% | 24.8 days | 392670 km |
| Jan 13 Sat | 03:14 | 15:19 | Waning Crescent | 15% | 25.8 days | 396305 km |
| Jan 14 Sun | 04:02 | 16:06 | Waning Crescent | 8% | 26.8 days | 399297 km |
| Jan 15 Mon | 04:50 | 16:54 | Waning Crescent | 3% | 27.8 days | 401683 km |
| Jan 16 Tue | 05:38 | 17:42 | New Moon | 1% | 28.8 days | 403517 km |
| Jan 17 Wed | 06:25 | 18:30 | Waxing Crescent | 0% | 0.2 days | 404831 km |
| Jan 18 Thu | 07:12 | 19:19 | Waxing Crescent | 2% | 1.2 days | 405604 km |
| Jan 19 Fri | 07:56 | 20:06 | Waxing Crescent | 6% | 2.2 days | 405696 km |
| Jan 20 Sat | 08:40 | 20:53 | Waxing Crescent | 11% | 3.2 days | 405144 km |
| Jan 21 Sun | 09:24 | 21:40 | Waxing Crescent | 19% | 4.2 days | 403621 km |
| Jan 22 Mon | 10:07 | 22:27 | Waxing Crescent | 28% | 5.2 days | 401055 km |
| Jan 23 Tue | 10:51 | 23:17 | First Quarter | 38% | 6.2 days | 397385 km |
| Jan 24 Wed | 11:37 | - | First Quarter | 49% | 7.2 days | 392663 km |
| Jan 25 Thu | 12:24 | 00:08 | First Quarter | 59% | 8.2 days | 387071 km |
| Jan 26 Fri | 13:17 | 01:02 | Waxing Gibbous | 69% | 9.2 days | 380922 km |
| Jan 27 Sat | 14:12 | 01:59 | Waxing Gibbous | 79% | 10.2 days | 374638 km |
| Jan 28 Sun | 15:12 | 02:59 | Waxing Gibbous | 87% | 11.2 days | 368702 km |
| Jan 29 Mon | 16:15 | 04:02 | Waxing Gibbous | 93% | 12.2 days | 363610 km |
| Jan 30 Tue | 17:18 | 05:04 | Waxing Gibbous | 97% | 13.2 days | 363104 km |
| Jan 31 Wed | 18:20 | 06:05 | Full Moon | 100% | 14.2 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.