
Sea water temperature throughout Delaware is not yet warm enough for swimming and does not exceed 68°F. The warmest ocean temperature in Delaware today is 63.5°F (in Bethany Beach), and the coldest sea temperature is 59.4°F (Wilmington).
Below are the cities and resorts in Delaware with the values of water temperature today and yesterday. Also indicated are the maximum and minimum water temperatures that were recorded this month for the last ten years. Presented weather data are now available for each of the resorts. For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.
Today, the highest waves along the entire coast of Delaware are expected at Fenwick Island, reaching a height of 1' 9" (0.54 m). The calmest seas can be found at Delaware City, with an average wave height of 0' 1" (0.02 m). If you want to see the 10-day sea forecast, choose the city you are interested in.
To find out what the water temperature was in Delaware any day over a period of the last ten years, select the month.