Water and sea temperature in Swainson Island (25th October 2020)
The sea temperature for Swainson Island today is 67°F
Average water/sea temperatures this week for Swainson Island
What wetsuit thickness is needed for Swainson Island?
The water temperature in Swainson Island is quite cool. Consider wearing a 2 mm to 3/2 mm springsuit or full wetsuit with a flatlock seam if you will be swimming in the ocean for extended periods of time.
Please note: These are general guidelines based on today's average water temperature of 67°F in Swainson Island. 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 Swainson Island
Our measurements for the water temperature in Swainson Island, Montgomery County, 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 Swainson Island 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 Swainson Island are as accurate as current data allows, there may be slight local and regional variations depending on conditions and variations in sea depth.