Moon · August 2026
Moon calendar for Cambridge, Massachusetts, United States: August 2026
Daily moon phases, illumination, moonrise and moonset in Cambridge, Massachusetts, United States for August 2026. Full moon: August 28, 2026. All times are shown in the local time of Cambridge, Massachusetts, United States.
Full moonFriday, August 28, 2026, 3:00 AM
New moonWednesday, August 12, 2026, 11:40 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Gibbous | 91% | 9:09 PM | 8:52 AM |
| 2 | Waning Gibbous | 84% | 9:36 PM | 10:08 AM |
| 3 | Waning Gibbous | 75% | 9:48 PM | 11:28 AM |
| 4 | Waning Gibbous | 65% | 10:20 PM | 12:24 PM |
| 5 | Last Quarter | 54% | 10:34 PM | 2:29 PM |
| 6 | Last Quarter | 42% | 11:31 PM | 3:18 PM |
| 7 | Waning Crescent | 31% | — | 4:24 PM |
| 8 | Waning Crescent | 21% | 12:16 AM | 5:40 PM |
| 9 | Waning Crescent | 12% | 1:21 AM | 6:28 PM |
| 10 | Waning Crescent | 5% | 2:23 AM | 7:31 PM |
| 11 | Waning Crescent | 1% | 3:45 AM | 7:52 PM |
| 12 | New Moon | 0% | 4:58 AM | 8:22 PM |
| 13 | Waxing Crescent | 1% | 6:24 AM | 8:35 PM |
| 14 | Waxing Crescent | 5% | 7:39 AM | 9:19 PM |
| 15 | Waxing Crescent | 11% | 8:39 AM | 9:33 PM |
| 16 | Waxing Crescent | 18% | 9:57 AM | 9:46 PM |
| 17 | Waxing Crescent | 27% | 11:14 AM | 10:16 PM |
| 18 | Waxing Crescent | 36% | 12:15 PM | 10:29 PM |
| 19 | First Quarter | 46% | 1:27 PM | 11:21 PM |
| 20 | First Quarter | 55% | 2:19 PM | — |
| 21 | Waxing Gibbous | 65% | 3:26 PM | 12:17 AM |
| 22 | Waxing Gibbous | 73% | 4:13 PM | 12:26 AM |
| 23 | Waxing Gibbous | 81% | 4:44 PM | 1:33 AM |
| 24 | Waxing Gibbous | 88% | 5:35 PM | 2:22 AM |
| 25 | Waxing Gibbous | 93% | 6:03 PM | 3:33 AM |
| 26 | Waxing Gibbous | 97% | 6:25 PM | 4:25 AM |
| 27 | Full Moon | 100% | 6:40 PM | 5:36 AM |
| 28 | Full Moon | 100% | 7:25 PM | 6:31 AM |
| 29 | Waning Gibbous | 98% | 7:37 PM | 7:44 AM |
| 30 | Waning Gibbous | 94% | 7:52 PM | 8:59 AM |
| 31 | Waning Gibbous | 87% | 8:21 PM | 10:15 AM |
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Frequently asked questions
When is the full moon in August 2026 in Cambridge, Massachusetts, United States?
The full moon peaks on Friday, August 28, 2026, 3:00 AM (local time).
When is the new moon in August 2026?
The new moon falls on Wednesday, August 12, 2026, 11:40 AM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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