Myrtle Beach — 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 Myrtle Beach 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 Myrtle Beach will be 26.9°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

Myrtle Beach, on the South Carolina Atlantic coast, offers a long stretch of sandy shoreline where the ocean temperature follows a clear seasonal pattern. During winter months water temperatures generally drop to about 11–15 °C, making swimming brisk for most visitors. In spring the ocean gradually warms to roughly 13–20 °C as air temperatures rise and sunlight increases. Summer brings the warmest conditions, with sea temperatures commonly between 23–29 °C, peaking in July and August and providing the most comfortable swimming conditions. In autumn the water cools again to around 18–24 °C, often staying pleasant through September before steady cooling later in the season. These ranges can vary year to year with weather patterns, and short-term cold snaps or warm spells occasionally shift the numbers a few degrees.