 And that kicks in at 8 a.m. and runs until this evening. Daybreak later this half hour, 547 on the coast between 549 and 550 inland. Those times are approximate. A UV index at 10 today. Don't get fooled by the clouds putting it in a very high category. Water temperature on average 66. Wave heights 3 to 5 feet. Rip current risk is low for the Delaware coast. Moderate for the southern New Jersey coast. High for the Maryland and Virginia coast.