Kiawah Island — Water Temperature, Sea Conditions & Trends

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

Water temperature in Kiawah Island has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.

According to our forecast, Water temperature in Kiawah Island will be 26.8°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Kiawah Island, on South Carolina’s Atlantic coast near Charleston, is a low-lying barrier island known for long sandy beaches, maritime forests and a generally mild climate. Sea surface temperatures around the island follow the seasonal cycle of the mid-Atlantic: winter water temperatures typically sit between about 12–16°C, spring waters rise through roughly 15–22°C, summer brings the warmest conditions around 24–29°C, and autumn usually cools back to the 20–25°C range. These values can vary with short-term weather, tides and the proximity of the Gulf Stream, and local inlets and shallow sandbars may warm or cool faster than open ocean waters.