First New Moon After Spring Equinox 2025. What is the first full moon after spring equinox? The first new moon after the summer solstice in 2025 is friday july 5, 2025.

The vernal equinox (spring) will be on tuesday. Typically the new buckmoon is the first new moon of summer but will be the last new moon of spring every few years, depending on if it happens before or after the summer solstice.