Measurements:
°C
°F
North Myrtle Beach
50°F
W 5 mph
Feels like: 48°F
Precip: 100%
World Resorts USA North Myrtle Beach Weather

North Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+58.4°F
Maximum Sea Water Temperature in December: 66.6°F
Minimum Sea Water Temperature in December: 49.2°F
Average water temperature in December: 57.1°F

Sea Water Temperature for the Last 10 Days:

December 04 58.4°F November 29 61.6°F
December 03 59.8°F November 28 63.2°F
December 02 59.8°F November 27 64.0°F
December 01 59.6°F November 26 63.2°F
November 30 61.2°F November 25 63.2°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
April 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 53.0 °F
February 57.4 °F
December 57.4 °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 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +44
Los Angeles +56
Maui +72
Miami +72
Miami Beach +80
New York +20
San Diego +58
San Francisco +48
Sarasota +64
Tampa +64
Washington +28
24 Hours Weather Forecast
North Myrtle Beach
Local time: 00:59
05 dec, friday
0300 50°F
NW
7 mph
0600 46°F
SW
3 mph
0900 46°F
SW
6 mph
1200 44°F
W
6 mph
1500 44°F
S
5 mph
1800 44°F
S
7 mph
2100 42°F
S
7 mph
06 dec, saturday
0000 40°F
S
9 mph