Measurements:
°C
°F
Myrtle Beach
88°F
SW 4 mph
Feels like: 88°F
Precip: 0%
World Resorts USA Myrtle Beach Weather

Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+77.8°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 04 77.8°F May 29 80.6°F
June 03 78.6°F May 28 80.2°F
June 01 79.8°F May 27 80.6°F
May 31 80.2°F May 26 79.4°F
May 30 79.4°F May 25 78.6°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
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Myrtle Beach
Local time: 13:05
04 jun, thursday
1500 90°F
NW
6 mph
1800 86°F
NW
10 mph
2100 76°F
N
9 mph
05 jun, friday
0000 72°F
N
7 mph
0300 70°F
NE
6 mph
0600 68°F
E
6 mph
0900 76°F
E
6 mph
1200 84°F
N
4 mph