Moon · May 2026
Moon calendar for Vacaville, California, United States: May 2026
Daily moon phases, illumination, moonrise and moonset in Vacaville, California, United States for May 2026. Full moon: May 1, 2026, May 31, 2026. All times are shown in the local time of Vacaville, California, United States.
Full moonFriday, May 1, 2026, 10:27 AM
Full moonSunday, May 31, 2026, 1:55 AM
New moonSaturday, May 16, 2026, 12:30 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Full Moon | 100% | 8:19 PM | 6:16 AM |
| 2 | Waning Gibbous | 99% | 9:27 PM | 6:32 AM |
| 3 | Waning Gibbous | 96% | 10:18 PM | 7:30 AM |
| 4 | Waning Gibbous | 91% | 11:02 PM | 8:05 AM |
| 5 | Waning Gibbous | 85% | 11:55 PM | 8:43 AM |
| 6 | Waning Gibbous | 78% | — | 9:46 AM |
| 7 | Waning Gibbous | 69% | 12:29 AM | 10:40 AM |
| 8 | Last Quarter | 60% | 1:28 AM | 11:37 AM |
| 9 | Last Quarter | 50% | 1:44 AM | 12:49 PM |
| 10 | Waning Crescent | 40% | 2:20 AM | 2:01 PM |
| 11 | Waning Crescent | 29% | 2:30 AM | 3:15 PM |
| 12 | Waning Crescent | 20% | 3:16 AM | 4:16 PM |
| 13 | Waning Crescent | 12% | 3:36 AM | 5:31 PM |
| 14 | Waning Crescent | 6% | 3:54 AM | 6:26 PM |
| 15 | Waning Crescent | 2% | 4:24 AM | 7:46 PM |
| 16 | New Moon | 0% | 5:06 AM | 9:20 PM |
| 17 | Waxing Crescent | 2% | 5:43 AM | 10:22 PM |
| 18 | Waxing Crescent | 6% | 6:30 AM | 11:36 PM |
| 19 | Waxing Crescent | 12% | 7:45 AM | — |
| 20 | Waxing Crescent | 21% | 9:05 AM | 12:23 AM |
| 21 | Waxing Crescent | 31% | 10:20 AM | 1:21 AM |
| 22 | First Quarter | 42% | 11:37 AM | 1:40 AM |
| 23 | First Quarter | 53% | 12:33 PM | 2:17 AM |
| 24 | Waxing Gibbous | 64% | 1:49 PM | 2:28 AM |
| 25 | Waxing Gibbous | 73% | 2:55 PM | 3:07 AM |
| 26 | Waxing Gibbous | 82% | 4:04 PM | 3:32 AM |
| 27 | Waxing Gibbous | 89% | 5:10 PM | 3:43 AM |
| 28 | Waxing Gibbous | 94% | 6:11 PM | 4:17 AM |
| 29 | Waxing Gibbous | 98% | 7:16 PM | 4:32 AM |
| 30 | Full Moon | 100% | 8:10 PM | 5:29 AM |
| 31 | Full Moon | 100% | 9:04 PM | 5:58 AM |
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Frequently asked questions
When is the full moon in May 2026 in Vacaville, California, United States?
The full moon peaks on Friday, May 1, 2026, 10:27 AM; Sunday, May 31, 2026, 1:55 AM (local time).
When is the new moon in May 2026?
The new moon falls on Saturday, May 16, 2026, 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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