Moon phase, moonrise and moonset times in San Mateo, California, United States
Current local time 8:22:14 PM (UTC-8)
Today, December 8
- Moonset10:19 AMMoonrise8:37 PM
- Moon PhaseWaning gibbousIlumination80%
Tomorrow, December 9
- Moonset10:57 AMMoonrise9:41 PM
- Moon PhaseWaning gibbousIlumination71%
- Full Moon4 December3:14 PM
- Third Quarter11 December12:51 PM
- New Moon19 December5:43 PM
- First Quarter27 December11:10 AM
- Full Moon3 January2:03 AM
December 2025 — Moon in San Mateo
| Icon | Date | Moonrise | Moonset | Moonrise | Moon phase | Illumination | |
|---|---|---|---|---|---|---|---|
| December 1 | Mon | — | 3:34 AM | 2:46 PM | Waxing gibbous | 86% | |
| December 2 | Tue | — | 4:38 AM | 3:21 PM | Waxing gibbous | 93% | |
| December 3 | Wed | — | 5:43 AM | 3:59 PM | Waxing gibbous | 98% | |
| December 4 | Thu | — | 6:47 AM | 4:44 PM | Full moon | 100% | |
| December 5 | Fri | — | 7:48 AM | 5:35 PM | Waning gibbous | 99% | |
| December 6 | Sat | — | 8:44 AM | 6:32 PM | Waning gibbous | 95% | |
| December 7 | Sun | — | 9:34 AM | 7:33 PM | Waning gibbous | 89% | |
| December 8 | Mon | — | 10:19 AM | 8:37 PM | Waning gibbous | 80% | |
| December 9 | Tue | — | 10:57 AM | 9:41 PM | Waning gibbous | 71% | |
| December 10 | Wed | — | 11:31 AM | 10:45 PM | Waning gibbous | 61% | |
| December 11 | Thu | — | 12:02 PM | 11:49 PM | Third quarter | 50% | |
| December 12 | Fri | — | 12:32 PM | — | Waning crescent | 41% | |
| December 13 | Sat | 12:52 AM | 1:01 PM | — | Waning crescent | 31% | |
| December 14 | Sun | 1:56 AM | 1:30 PM | — | Waning crescent | 23% | |
| December 15 | Mon | 2:59 AM | 2:02 PM | — | Waning crescent | 15% | |
| December 16 | Tue | 4:04 AM | 2:38 PM | — | Waning crescent | 9% | |
| December 17 | Wed | 5:08 AM | 3:18 PM | — | Waning crescent | 5% | |
| December 18 | Thu | 6:12 AM | 4:05 PM | — | Waning crescent | 1% | |
| December 19 | Fri | 7:11 AM | 4:58 PM | — | New moon | 0% | |
| December 20 | Sat | 8:06 AM | 5:56 PM | — | Waxing crescent | 1% | |
| December 21 | Sun | 8:55 AM | 6:58 PM | — | Waxing crescent | 3% | |
| December 22 | Mon | 9:37 AM | 8:02 PM | — | Waxing crescent | 7% | |
| December 23 | Tue | 10:14 AM | 9:07 PM | — | Waxing crescent | 13% | |
| December 24 | Wed | 10:47 AM | 10:11 PM | — | Waxing crescent | 21% | |
| December 25 | Thu | 11:17 AM | 11:14 PM | — | Waxing crescent | 30% | |
| December 26 | Fri | — | — | 11:46 AM | Waxing crescent | 40% | |
| December 27 | Sat | — | 12:18 AM | 12:16 PM | First quarter | 51% | |
| December 28 | Sun | — | 1:21 AM | 12:46 PM | Waxing gibbous | 62% | |
| December 29 | Mon | — | 2:25 AM | 1:19 PM | Waxing gibbous | 73% | |
| December 30 | Tue | — | 3:30 AM | 1:56 PM | Waxing gibbous | 82% | |
| December 31 | Wed | — | 4:34 AM | 2:38 PM | Waxing gibbous | 91% |
| San Pedro | San Rafael | San Ramon | San Mateo | San Jose | San Leandro | San Marcos |