Measurements:
°C
°F
North Myrtle Beach
84°F
NE 8 mph
Feels like: 86°F
Precip: 0%
World Resorts USA North Myrtle Beach Weather

North Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+67.6°F
Maximum Sea Water Temperature in April: 72.4°F
Minimum Sea Water Temperature in April: 59.2°F
Average water temperature in April: 66.6°F

Sea Water Temperature for the Last 10 Days:

April 23 67.6°F April 18 68.0°F
April 22 66.8°F April 17 67.0°F
April 21 67.4°F April 16 67.6°F
April 20 67.4°F April 15 68.6°F
April 19 69.2°F April 14 66.6°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
November 16 days
December 15 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 10 mph

North Myrtle Beach on the Weather Map

USA Resorts:
NAME
Chicago +70
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +68
Los Angeles +64
Maui +70
Miami +82
Miami Beach +82
New York +76
San Diego +66
San Francisco +58
Sarasota +88
Tampa +86
Washington +82
24 Hours Weather Forecast
North Myrtle Beach
Local time: 12:10
23 apr, thursday
1500 82°F
N
12 mph
1800 80°F
N
15 mph
2100 70°F
NE
15 mph
24 apr, friday
0000 68°F
NE
13 mph
0300 66°F
NE
11 mph
0600 64°F
E
9 mph
0900 70°F
E
11 mph
1200 78°F
NE
9 mph