When Is New Moon In October 2025. See the new moon dates in 2025 and the lunar phase calendar for each month. Find out the date when new moon is in october 2025 and count down the days since new moon with a countdown timer.
Find out the dates and times of the new moon, full moon, and other moon phases in october 2025. The new moon in september 2025 is on tuesday, september 3 at 01:55 utc.