Seoul’s dense light dome pushes observers toward Gangwon mountains and west-coast islands. Cold continental winters bring long nights and occasional crystal Siberian air masses.
Yellow dust events can mute stars with almost no cloud cover.
South Korea · Korean Peninsula · ~37.6°N
Check the live Tonight score for Seoul (cloud, dew, transparency, and astronomical dark), then read the hourly cloud timing chart and moonless dark window on this page.
Use the best clear window clock times after astronomical darkness, and prefer moonless hours when deep-sky contrast matters.
This hub shows moonrise, moonset, illumination, and the longest moonless astronomical-dark interval for Seoul. Open Dark Sky Window for the full ephemeris card.
ISS passes are spottable near dusk or dawn when the sky is dark and the station is still sunlit. This page lists the next spottable pass when available.
Learn: Is tonight good for stargazing? · How to see the Milky Way