Water and sea temperature in Nassau County (30th November 2020)
The average sea temperature for Nassau County is 56°F today
Average water/sea temperatures this week for Nassau County
What wetsuit thickness is needed for Nassau County?
The water temperature in Nassau County is freezing. You should consider wearing a 4/3 mm to 5/4/3 mm full sealed and taped suit with boots, gloves and a hood particularly if you plan to be swimming in the ocean for extended periods of time.
Please note: These are general guidelines based on today's average water temperature of 56°F in Nassau County. If there are strong winds, cold air temperatures, you are engaging in activities with less movement or you get cold easily, you may want to consider a thicker wetsuit. consider a thicker wetsuit.
Information about our water / sea temperature data for Nassau County
Our measurements for the water temperature in Nassau County, New York, United States are provided by the daily sea surface temperature (SST) satellite readings from NOAA.
Please be aware that our water temperatures are based on open water averages. Actual sea surface water temperatures close to the shore at Nassau County can vary by several degrees.
Weather patterns that can increase variation in water temperatures
Heavy rains, locations near river mouths and long periods of strong offshore winds can cause variations in ocean temperatures. Offshore winds cause the colder deep water to replace the surface water which has been warmed by the sun.
Whilst sea temperatures for Nassau County are as accurate as current data allows, there may be slight local and regional variations depending on conditions and variations in sea depth.