Cayman Weather: Showers expected as tropical wave looms Loop News Created : 11 June 2018 Cayman News Cloudiness and isolated showers are expected for the Cayman area on Monday, as a tropical wave, which is east of the Island, is expected to move across the island on Tuesday morning. According to the Cayman Islands National Weather Service, the upper level trough over the northwest Caribbean is expected to periodically spread across the Cayman area on Monday. Radar images show isolated showers in and around the Cayman area moving northwest. Expect partly cloudy to cloudy skies on Monday morning with a 30% chance of rain. Increased cloudiness and rainy conditions are expected for Monday evening into Tuesday morning. Winds will be east to northeast at 5 to 10 knots with higher gusts. Seas will be slight to moderate with wave heights of 2 to 4 feet.