LoupeLabMoon Phase in Seoul Today
Monday, August 31, 2026 · South Korea
Waning Gibbous
90% illuminated
Tonight’s Moon in Seoul
Best viewing at 3:15 AM facing S · 65° above horizon
The Moon & Seoul
continental monsoon climate with clear autumn skies
Lunar Culture in Seoul
Korea's Chuseok (harvest moon) festival is one of the country's most important holidays, celebrating the autumn full moon with ancestral rites and traditional foods including songpyeon (half-moon rice cakes). Gyeongbokgung Palace hosts moonlit evening openings during full moons. The Korean Astronomy and Space Science Institute traces its heritage to the Joseon Dynasty's celestial observation instruments at Changgyeonggung.
How the Moon Affects Seoul
The Yellow Sea coast near Seoul has an extreme tidal range of 8-10 meters at Incheon, among the largest in the world. This dramatically affects port operations, mudflat ecology, and the Korean seafood industry. The traditional Korean lunar calendar (Eum-ryeok) governs the timing of most Korean festivals and many business customs, including auspicious dates for weddings and openings.
Best Moon Viewing in Seoul
Namsan Tower (480m) provides the most accessible elevated view in Seoul. Bukhansan National Park's peaks offer darker skies. Autumn (September-November) provides the clearest and most culturally significant moon viewing, particularly during Chuseok.
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Upcoming Lunar Events
New Moon
Friday, September 11, 2026
Full MoonHarvest Moon
Sunday, September 27, 2026
New Moon
Saturday, October 10, 2026
Full MoonHunter's Moon
Monday, October 26, 2026
New Moon
Monday, November 9, 2026
Full MoonBeaver Moon
Wednesday, November 25, 2026
Moonphase Watches & Seoul
Set Your Moonphase Watch in Seoul
To set your moonphase complication in Seoul: wait for the next full moon (Sunday, September 27), then advance the moonphase disc to show a full moon centered in the aperture. Set the time to 8:18 PM local time. Use our drift calculator to check if your complication has drifted since you last set it.
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