Ewiniar was a TS tropical cyclone that formed in the South China Sea in 2018. The storm reached maximum sustained winds of 74 km/h (40 kt) with a minimum central pressure of 998 hPa. Tracking across the South China Seain the Western Pacific basin (, it potentially affected Vietnam, the Philippines, China and Taiwan. The storm traveled from approximately 12.3°110.4° to 23.5°112.9°, crossing a range of 11 latitude and 2 longitude.