Moon · January 2027
Moon calendar for San Mateo, California, United States: January 2027
Daily moon phases, illumination, moonrise and moonset in San Mateo, California, United States for January 2027. Full moon: January 22, 2027. All times are shown in the local time of San Mateo, California, United States.
Full moonFriday, January 22, 2027, 2:05 AM
New moonThursday, January 7, 2027, 12:30 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Crescent | 30% | 1:38 AM | 12:40 PM |
| 2 | Waning Crescent | 21% | 2:31 AM | 1:32 PM |
| 3 | Waning Crescent | 14% | 3:42 AM | 2:03 PM |
| 4 | Waning Crescent | 8% | 4:33 AM | 2:33 PM |
| 5 | Waning Crescent | 4% | 5:40 AM | 3:36 PM |
| 6 | New Moon | 1% | 6:25 AM | 4:23 PM |
| 7 | New Moon | 0% | 7:25 AM | 5:33 PM |
| 8 | New Moon | 1% | 7:47 AM | 6:22 PM |
| 9 | Waxing Crescent | 4% | 8:23 AM | 7:32 PM |
| 10 | Waxing Crescent | 8% | 8:39 AM | 8:22 PM |
| 11 | Waxing Crescent | 14% | 9:28 AM | 9:32 PM |
| 12 | Waxing Crescent | 22% | 9:39 AM | 10:23 PM |
| 13 | Waxing Crescent | 31% | 10:09 AM | 11:34 PM |
| 14 | First Quarter | 41% | 10:26 AM | — |
| 15 | First Quarter | 52% | 10:50 AM | 12:27 AM |
| 16 | Waxing Gibbous | 63% | 11:35 AM | 1:44 AM |
| 17 | Waxing Gibbous | 73% | 12:12 PM | 3:04 AM |
| 18 | Waxing Gibbous | 83% | 12:47 PM | 4:17 AM |
| 19 | Waxing Gibbous | 91% | 1:51 PM | 5:33 AM |
| 20 | Waxing Gibbous | 96% | 3:08 PM | 6:24 AM |
| 21 | Full Moon | 99% | 4:20 PM | 7:30 AM |
| 22 | Full Moon | 100% | 5:38 PM | 8:04 AM |
| 23 | Waning Gibbous | 97% | 6:40 PM | 8:27 AM |
| 24 | Waning Gibbous | 93% | 8:07 PM | 9:16 AM |
| 25 | Waning Gibbous | 85% | 9:24 PM | 9:34 AM |
| 26 | Waning Gibbous | 77% | 10:22 PM | 9:58 AM |
| 27 | Waning Gibbous | 67% | 11:34 PM | 10:22 AM |
| 28 | Last Quarter | 57% | — | 10:41 AM |
| 29 | Last Quarter | 47% | 12:25 AM | 11:32 AM |
| 30 | Waning Crescent | 37% | 1:37 AM | 11:59 AM |
| 31 | Waning Crescent | 28% | 2:27 AM | 12:29 PM |
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Frequently asked questions
When is the full moon in January 2027 in San Mateo, California, United States?
The full moon peaks on Friday, January 22, 2027, 2:05 AM (local time).
When is the new moon in January 2027?
The new moon falls on Thursday, January 7, 2027, 12:30 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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