The July full moon 2025, also known as the Buck Moon or Thunder Moon, will be visible on July 10 in the US and July 11 in India, coinciding with the spiritual festival of Guru Purnima. Dates and times for the primary Moon phases in July 2025. What is a Full Moon? A Full Moon is defined as the moment when the Sun and the Moon are on opposite sides of Earth, and the visible side of the Moon is fully lit up. July’s Full Moon is at its most illuminated at 20:36 UTC on July 10, 2025. Discover the Buck Moon on July 10, 2025! Learn its meaning, best viewing times worldwide, and astronomical/cultural significance. Though a Full Moon only occurs during the exact moment when Earth, Moon, and Sun form a perfect alignment, to our eyes, the Moon seems Full for around three days.