 ...with 3 to 4 foot seas. For tonight, south to southwest winds at 15 to 20 knots, seas of 3 to 4 feet, a chance for thunderstorms. And on Wednesday, south winds 10 to 15 knots, seas of 2 to 4 feet. The current water temperature is 69. High tide at Rehoboth Beach, 4.37 p.m. Low tide at Cambridge, 6.36. And low tide at Rehoboth Beach at 10.57 p.m.