Moon calendar for September 2026
Every day of September 2026 with the Moon's phase and how much of it is lit at 12:00 UTC. The new Moon, the quarters and the full Moon are marked on the day they happen in UTC.
New Moon, quarters and full Moon in September 2026
- Last quarter
- New Moon
- First quarter
- Full Moon
Times are in Coordinated Universal Time (UTC), to the minute, and agree with NASA's published table of Moon phases to within two minutes. Where your browser allows, your own clock is shown under each.
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| September 1: Waning gibbous, 80% lit | September 2: Waning gibbous, 70% lit | September 3: Waning gibbous, 60% lit | September 4: Last quarter, 48% lit | September 5: Waning crescent, 37% lit | ||
| September 6: Waning crescent, 26% lit | September 7: Waning crescent, 17% lit | September 8: Waning crescent, 9% lit | September 9: Waning crescent, 3% lit | September 10: Waning crescent, 1% lit | September 11: New Moon, 0% lit | September 12: Waxing crescent, 2% lit |
| September 13: Waxing crescent, 6% lit | September 14: Waxing crescent, 12% lit | September 15: Waxing crescent, 20% lit | September 16: Waxing crescent, 28% lit | September 17: Waxing crescent, 37% lit | September 18: First quarter, 47% lit | September 19: Waxing gibbous, 56% lit |
| September 20: Waxing gibbous, 65% lit | September 21: Waxing gibbous, 74% lit | September 22: Waxing gibbous, 82% lit | September 23: Waxing gibbous, 89% lit | September 24: Waxing gibbous, 95% lit | September 25: Waxing gibbous, 98% lit | September 26: Full Moon, 100% lit |
| September 27: Waning gibbous, 99% lit | September 28: Waning gibbous, 96% lit | September 29: Waning gibbous, 90% lit | September 30: Waning gibbous, 83% lit |