Moon calendar · September 2026
Moon phases in September 2026
Every day of September 2026 with its moon phase and illumination. The full moon falls on 2026-09-26; the new moon on 2026-09-11.
Notable phases this month
Every day of September 2026
2026-09-01TuesdayWaning Gibbous · 70% waning2026-09-02WednesdayWaning Gibbous · 63% waning2026-09-03ThursdayWaning Gibbous · 56% waning2026-09-04FridayLast Quarter · 49% waning2026-09-05SaturdayWaning Crescent · 41% waning2026-09-06SundayWaning Crescent · 34% waning2026-09-07MondayWaning Crescent · 27% waning2026-09-08TuesdayWaning Crescent · 19% waning2026-09-09WednesdayWaning Crescent · 12% waning2026-09-10ThursdayNew Moon · 5% waning2026-09-11FridayNew Moon · 3% waxing2026-09-12SaturdayWaxing Crescent · 9% waxing2026-09-13SundayWaxing Crescent · 16% waxing2026-09-14MondayWaxing Crescent · 23% waxing2026-09-15TuesdayWaxing Crescent · 29% waxing2026-09-16WednesdayWaxing Crescent · 36% waxing2026-09-17ThursdayWaxing Crescent · 42% waxing2026-09-18FridayFirst Quarter · 48% waxing2026-09-19SaturdayFirst Quarter · 54% waxing2026-09-20SundayWaxing Gibbous · 60% waxing2026-09-21MondayWaxing Gibbous · 66% waxing2026-09-22TuesdayWaxing Gibbous · 72% waxing2026-09-23WednesdayWaxing Gibbous · 79% waxing2026-09-24ThursdayWaxing Gibbous · 85% waxing2026-09-25FridayWaxing Gibbous · 92% waxing2026-09-26SaturdayFull Moon · 99% waxing2026-09-27SundayFull Moon · 94% waning2026-09-28MondayWaning Gibbous · 87% waning2026-09-29TuesdayWaning Gibbous · 80% waning2026-09-30WednesdayWaning Gibbous · 73% waningHow to use this calendar
Folk practice reads the waxing half of the cycle (new moon to full moon) as the window for beginnings and growth, and the waning half as the window for review, release, and rest. The day links open that date's full moon read — phase, energy, and the day's other six traditions.
The phase table is computed from the moon's actual phase angle, but the meanings attached to each phase are symbolic traditions, not predictions. Observation safety, weather, and practical plans always come first.
Frequently asked questions
When is the full moon in September 2026?
The full moon in September 2026 falls on 2026-09-26, at roughly 99% illumination. The days around it carry the strongest "visibility and release" reading in the site's moon tradition.
When is the new moon in September 2026?
The new moon in September 2026 falls on 2026-09-11 — the darkest day of the month, read across folk practice as the window for beginnings and low-energy rest.
How is each day's phase calculated here?
Each day is computed at build time from the moon's phase angle (astronomy-engine), the same engine behind the site's daily moon reads. Illumination percentages are rounded; the pages for individual dates show the full seven-tradition read.