Measurements:
°C
°F
Myrtle Beach
80°F
NW 5 mph
Feels like: 84°F
Precip: 6%
World Resorts USA Myrtle Beach Weather

Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+85.6°F
Maximum Sea Water Temperature in June: 88.0°F
Minimum Sea Water Temperature in June: 73.0°F
Average water temperature in June: 81.5°F

Sea Water Temperature for the Last 10 Days:

June 24 85.6°F June 19 84.0°F
June 23 85.8°F June 18 84.2°F
June 22 83.4°F June 17 83.6°F
June 21 83.2°F June 16 83.4°F
June 20 83.8°F June 15 83.4°F

When is the Warmest Sea for Myrtle Beach?

According to our data for the last three years for Myrtle Beach the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Myrtle Beach was 86.8°F. The maximum and minimum values were 85.4°F and 90.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Myrtle Beach was 85.4°F. The maximum and minimum values were 80.0°F and 89.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Myrtle Beach was 81.8°F. The maximum and minimum values were 78.4°F and 84.6°F respectively.

Best Time to Visit Myrtle Beach
The most sunny months:
October 17 days
April 17 days
November 16 days
The most warm months:
July 91.2 °F
August 89.4 °F
June 87.9 °F
Warmest sea temperature:
August 86.7 °F
July 86.5 °F
September 83.7 °F
The most cold months:
January 54.2 °F
December 58.0 °F
February 58.7 °F
The most rainy months:
August 5 days
July 4 days
June 3 days
The most windy months:
March 9 mph
February 8 mph
April 8 mph

Myrtle Beach on the Weather Map

USA Resorts:
NAME
Chicago +68
Hawaii +80
Honolulu +80
Houston +86
Las Vegas +96
Los Angeles +66
Maui +74
Miami +84
Miami Beach +88
Myrtle Beach +80
New York +72
San Diego +68
San Francisco +56
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Myrtle Beach
Local time: 23:14
25 jun, thursday
0000 80°F
NW
5 mph
0300 78°F
W
5 mph
0600 76°F
W
6 mph
0900 84°F
W
6 mph
1200 88°F
NW
5 mph
1500 88°F
NW
9 mph
1800 88°F
NW
10 mph
2100 82°F
N
8 mph