On July 19, the JMA reported that Danas has reached its peak wind speeds with continuous winds of 85 km/h (50 mph). Later that day, Danas began to weaken. On July 20, around 13:00 UTC, Danas made landfall on South Korea as a minimal tropical storm, before weakening into a tropical depression soon afterward. The weakening trend also accelerated on July 20 due to the drop in sea temperature to 23 degrees Celsius near landfall. The Republic of Korea Meteorological Administration downgraded Danas to a tropical depression at 11 am and stopped issuing announcements. At 12:45 UTC on July 21, Danas transitioned into an extratropical low in the Sea of Japan, and the JMA issued their final advisory on the storm.