You can find more moon phase details on both of the websites used in this post by clicking on each hyperlink.

Source: nineplanets.org

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The Moon phase for January 3rd, 2026 is the Full Moon phase. In this phase, the moon is 100% illuminated when seen from Earth (hence the name Full Moon).

The Full Moon happens when the moon is on the opposite side of the Earth from the Sun. The sunlight fully illuminated the moon, and this is what we call being “full”. The moon will be visible throughout the night sky as it rises at sunset in the east, transits the meridian at midnight, before setting at sunrise in the west.

The specific point at which the Full Moon occurs can be measured down to a fraction of a second. The time that passes between full moons is called the Synodic month and is 29.530587981 days long.

Fun fact:

 Phase Details

Phase: Full Moon

Moon age: 13.45 days

Moon illumination: 99.29%

Moon tilt: 157.237°

Moon angle: 0.55

Moon distance: 360,973.80 km

Moon sign: Cancer

Source: MoonGiant.com

You can use this link to go forward or backward in time for Moon phase information. If you are curious, you can even find out what phase the Moon was in when you or anyone else was born.

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Visit the January 2026 Moon Phases Calendar to see all the daily moon phase for this month.

Today’s Full Moon Phase

The Full Moon on January 3 has an illumination of 100%. This is the percentage of the Moon illuminated by the Sun. The illumination is constantly changing and can vary up to 10% a day. On January 3 the Moon is 15.13 days old. This refers to how many days it has been since the last New Moon. It takes 29.53 days for the Moon to orbit the Earth and go through the lunar cycle of all 8 Moon phases.

Phase Details

You can find more moon phase details on both of the websites used in this post by clicking on each hyperlink.

Source: nineplanets.org

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The Moon phase for today is a Waxing Gibbous phase. This is the phase where the moon is more than 50% illuminated but has not yet reached 100% illumination (which would be a Full Moon).

In the Northern Hemisphere, the right side will be illuminated, and in the Southern hemisphere it’ll be the left side that is illuminated.

The Waxing Gibbous phase, like all moon phases, will last for just over 7 days. The actual length will vary because of the elliptical…

Fun fact:

Phase Details

Phase: Waxing Gibbous

Moon age: 13.44 days

Moon illumination: 99.26%

Moon tilt: 155.17°

Moon angle: 0.55

Moon distance: 360,953.84 km

Moon sign: Cancer

Source: MoonGiant.com

You can use this link to go forward or backward in time for Moon phase information. If you are curious, you can even find out what phase the Moon was in when you or anyone else was born.

…

Visit the January 2026 Moon Phases Calendar to see all the daily moon phase for this month.

Today’s Waxing Gibbous Phase

The Waxing Gibbous on January 2 has an illumination of 99%. This is the percentage of the Moon illuminated by the Sun. The illumination is constantly changing and can vary up to 10% a day. On January 2 the Moon is 14 days old. This refers to how many days it has been since the last New Moon. It takes 29.53 days for the Moon to orbit the Earth and go through the lunar cycle of all 8 Moon phases.

Phase Details