Moon Phases in San Mateo
Moonrise, Moonset, Phase, Illumination and Age for September1900
Today's Moon
Calculated for 2026-05-19
- Moonrise
- 08:20
- Phase
- New Moon
- Age of Moon
- 1.7 days
- Moonset
- 21:19
- Illumination
- 3%
- Next Full Moon
- 2026-05-31
Today's Sun
Calculated for 2026-05-19
- Sunrise
- 05:32
- Sunset
- 18:00
- Day Length
- 12h 27m
| Date | Moonrise | Moonset | Phase | Illumination | Age | Distance |
|---|---|---|---|---|---|---|
| Sep 1 Sat | 11:19 | 23:23 | First Quarter | 42% | 6.7 days | 369845 km |
| Sep 2 Sun | 12:10 | - | First Quarter | 53% | 7.7 days | 370110 km |
| Sep 3 Mon | 13:04 | 00:15 | First Quarter | 63% | 8.7 days | 370955 km |
| Sep 4 Tue | 13:58 | 01:10 | Waxing Gibbous | 73% | 9.7 days | 372359 km |
| Sep 5 Wed | 14:53 | 02:06 | Waxing Gibbous | 82% | 10.7 days | 374303 km |
| Sep 6 Thu | 15:46 | 03:04 | Waxing Gibbous | 89% | 11.7 days | 376772 km |
| Sep 7 Fri | 16:38 | 04:01 | Waxing Gibbous | 95% | 12.7 days | 379739 km |
| Sep 8 Sat | 17:31 | 04:58 | Waxing Gibbous | 99% | 13.7 days | 383152 km |
| Sep 9 Sun | 18:22 | 05:56 | Full Moon | 100% | 14.7 days | 386914 km |
| Sep 10 Mon | 19:15 | 06:53 | Waning Gibbous | 99% | 15.7 days | 390876 km |
| Sep 11 Tue | 20:08 | 07:51 | Waning Gibbous | 96% | 16.7 days | 394827 km |
| Sep 12 Wed | 21:04 | 08:50 | Waning Gibbous | 91% | 17.7 days | 398500 km |
| Sep 13 Thu | 22:00 | 09:49 | Waning Gibbous | 84% | 18.7 days | 401595 km |
| Sep 14 Fri | 22:56 | 10:48 | Waning Gibbous | 75% | 19.7 days | 403811 km |
| Sep 15 Sat | 23:52 | 11:44 | Last Quarter | 66% | 20.7 days | 404885 km |
| Sep 16 Sun | - | 12:38 | Last Quarter | 55% | 21.7 days | 404634 km |
| Sep 17 Mon | 00:45 | 13:29 | Last Quarter | 45% | 22.7 days | 402987 km |
| Sep 18 Tue | 01:37 | 14:15 | Last Quarter | 34% | 23.7 days | 400007 km |
| Sep 19 Wed | 02:25 | 15:00 | Waning Crescent | 25% | 24.7 days | 395890 km |
| Sep 20 Thu | 03:12 | 15:42 | Waning Crescent | 16% | 25.7 days | 390944 km |
| Sep 21 Fri | 03:57 | 16:22 | Waning Crescent | 9% | 26.7 days | 385560 km |
| Sep 22 Sat | 04:41 | 17:01 | Waning Crescent | 4% | 27.7 days | 380162 km |
| Sep 23 Sun | 05:25 | 17:41 | New Moon | 1% | 28.7 days | 375165 km |
| Sep 24 Mon | 06:08 | 18:20 | Waxing Crescent | 0% | 0.1 days | 370929 km |
| Sep 25 Tue | 06:52 | 19:02 | Waxing Crescent | 1% | 1.1 days | 367730 km |
| Sep 26 Wed | 07:38 | 19:45 | Waxing Crescent | 5% | 2.1 days | 365739 km |
| Sep 27 Thu | 08:25 | 20:30 | Waxing Crescent | 11% | 3.1 days | 365011 km |
| Sep 28 Fri | 09:14 | 21:18 | Waxing Crescent | 18% | 4.1 days | 365497 km |
| Sep 29 Sat | 10:05 | 22:08 | Waxing Crescent | 27% | 5.1 days | 367057 km |
| Sep 30 Sun | 10:56 | 23:01 | First Quarter | 37% | 6.1 days | 369488 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.