How warm is New Jersey water in spring? In April sea water temperature throughout New Jersey is not yet warm enough for swimming and does not exceed 68°F. Based on average water temperature observations over the past ten years, the warmest ocean in New Jersey in April was 52.2°F (in Sea Breeze), and the coldest sea 46.8°F (in Ocean Grove). To find out the sea temperature today and in the coming days, go to Current sea temperature in New Jersey
New Jersey cities and resorts with the values of the average water temperature in April in recent years.
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.
To find out what the water temperature was in New Jersey any day over a period of the last ten years, select the month