Measurements:
°C
°F
North Myrtle Beach
86°F
S 11 mph
Feels like: 86°F
Precip: 0%
World Resorts USA North Myrtle Beach Weather

North Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+72.0°F
Maximum Sea Water Temperature in May: 81.0°F
Minimum Sea Water Temperature in May: 68.4°F
Average water temperature in May: 74.6°F

Sea Water Temperature for the Last 10 Days:

May 14 72.0°F May 09 71.0°F
May 13 72.2°F May 08 72.0°F
May 12 73.0°F May 07 71.0°F
May 11 73.2°F May 06 70.0°F
May 10 71.4°F May 05 68.6°F

When is the Warmest Sea for North Myrtle Beach?

According to our data for the last three years for North 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 North Myrtle Beach was 86.9°F. The maximum and minimum values were 85.4°F and 90.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for North Myrtle Beach was 86.4°F. The maximum and minimum values were 82.0°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for North Myrtle Beach was 81.7°F. The maximum and minimum values were 78.6°F and 84.2°F respectively.

Best Time to Visit North Myrtle Beach
The most sunny months:
October 17 days
April 17 days
November 16 days
The most warm months:
July 89.3 °F
August 87.8 °F
June 85.9 °F
Warmest sea temperature:
August 87.0 °F
July 86.9 °F
September 83.7 °F
The most cold months:
January 52.9 °F
February 56.8 °F
December 57.0 °F
The most rainy months:
August 6 days
July 5 days
September 3 days
The most windy months:
March 10 mph
February 10 mph
April 9 mph

North Myrtle Beach on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +56
Hawaii +76
Honolulu +76
Houston +94
Las Vegas +88
Los Angeles +66
Maui +70
Miami +94
Miami Beach +90
New York +68
San Diego +66
San Francisco +62
Sarasota +94
Tampa +94
24 Hours Weather Forecast
North Myrtle Beach
Local time: 12:14
14 may, thursday
1500 88°F
SE
9 mph
1800 82°F
S
13 mph
2100 72°F
S
12 mph
15 may, friday
0000 64°F
S
7 mph
0300 58°F
S
11 mph
0600 54°F
S
9 mph
0900 60°F
S
8 mph
1200 70°F
SE
7 mph