Moon · September 2026
Moon calendar for Costa Mesa, California, United States: September 2026
Daily moon phases, illumination, moonrise and moonset in Costa Mesa, California, United States for September 2026. Full moon: September 26, 2026. All times are shown in the local time of Costa Mesa, California, United States.
Full moonSaturday, September 26, 2026, 2:33 PM
New moonThursday, September 10, 2026, 5:45 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Gibbous | 77% | 9:32 PM | 11:31 AM |
| 2 | Waning Gibbous | 67% | 10:07 PM | 12:26 PM |
| 3 | Last Quarter | 56% | 10:46 PM | 1:44 PM |
| 4 | Last Quarter | 44% | 11:51 PM | 2:56 PM |
| 5 | Waning Crescent | 33% | — | 4:02 PM |
| 6 | Waning Crescent | 22% | 1:09 AM | 4:47 PM |
| 7 | Waning Crescent | 13% | 2:20 AM | 5:37 PM |
| 8 | Waning Crescent | 6% | 3:36 AM | 6:18 PM |
| 9 | Waning Crescent | 2% | 4:30 AM | 6:35 PM |
| 10 | New Moon | 0% | 5:45 AM | 7:28 PM |
| 11 | New Moon | 1% | 6:45 AM | 7:38 PM |
| 12 | Waxing Crescent | 4% | 7:53 AM | 8:14 PM |
| 13 | Waxing Crescent | 9% | 8:53 AM | 8:27 PM |
| 14 | Waxing Crescent | 15% | 9:56 AM | 9:22 PM |
| 15 | Waxing Crescent | 23% | 10:54 AM | 9:40 PM |
| 16 | Waxing Crescent | 31% | 11:54 AM | 10:22 PM |
| 17 | First Quarter | 40% | 12:44 PM | 11:23 PM |
| 18 | First Quarter | 50% | 1:43 PM | — |
| 19 | First Quarter | 59% | 2:26 PM | 12:04 AM |
| 20 | Waxing Gibbous | 68% | 3:27 PM | 12:54 AM |
| 21 | Waxing Gibbous | 77% | 3:48 PM | 1:50 AM |
| 22 | Waxing Gibbous | 84% | 4:25 PM | 2:45 AM |
| 23 | Waxing Gibbous | 91% | 4:46 PM | 3:46 AM |
| 24 | Waxing Gibbous | 96% | 5:33 PM | 4:40 AM |
| 25 | Waxing Gibbous | 99% | 5:44 PM | 5:45 AM |
| 26 | Full Moon | 100% | 6:21 PM | 6:46 AM |
| 27 | Waning Gibbous | 99% | 6:33 PM | 7:57 AM |
| 28 | Waning Gibbous | 95% | 7:30 PM | 9:15 AM |
| 29 | Waning Gibbous | 89% | 7:55 PM | 10:19 AM |
| 30 | Waning Gibbous | 81% | 8:32 PM | 11:34 AM |
Another city or date
Frequently asked questions
When is the full moon in September 2026 in Costa Mesa, California, United States?
The full moon peaks on Saturday, September 26, 2026, 2:33 PM (local time).
When is the new moon in September 2026?
The new moon falls on Thursday, September 10, 2026, 5:45 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
More for Costa Mesa, California, United States
Near Costa Mesa
- Huntington Beach, California, United States
- Irvine, California, United States
- Santa Ana, California, United States
- Garden Grove, California, United States
- Anaheim, California, United States
- Fullerton, California, United States
- Long Beach, California, United States
- Corona, California, United States
- Torrance, California, United States
- Pomona, California, United States
- Ontario, California, United States
- Inglewood, California, United States