The full moon is not on August 20 in either 2024 or 2025. Specifically, on August 20, 2025, the Moon is in its Waning Crescent phase, with only about 9.4% of the visible lunar disk illuminated. The full moon in August 2025 actually occurred earlier on August 9, 2025. Similarly, in 2024, on August 20, the Moon was in a Waning Gibbous phase, which is after the full moon, which occurred on August 19, 2024. Therefore, there is no full moon on August 20 in these recent years. The closest full moons were on August 9 in 2025 and August 19 in 2024. On August 20, the moon phases are waning, either crescent or gibbous, shortly after the full moon date in each year.
