When Is The Full Moon In December 2025. The moon is then in leo zodiac. The full moon for december appears on december 14, 2025.

December 15, 2025 (full cold moon) the december 2025 full moon, also called full cold moon, will be on sunday december 15, 2025 4:02 am et or 9:02 am. Our natural satellite will reach the full moon phase on december 15, 2025, at 09:02 gmt (04:02 a.m.