Moon phase tonight
Thursday, December 31, 2026
Moon phase on December 31
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Last Quarter
51% illuminated · 22.1 days into the lunar cycle
Illumination
51%
QUIET
Next Full Moon
Jan 2222d away
QUIET
Next New Moon
Jan 77d away
QUIET
Sky-watching conditions
With 51% of the moon lit, expect moderate moonlight — a strong aurora display should still be visible, but faint activity may be washed out. Check the aurora forecast for tonight's Kp index and visibility odds.