Measurements:
°C
°F
North Myrtle Beach
76°F
SW 13 mph
Feels like: 80°F
Precip: 21%
World Resorts USA North Myrtle Beach Weather

North Myrtle Beach Sea Water Temperature

Current Sea Water Temperature:
+87.6°F
Maximum Sea Water Temperature in September: 89.2°F
Minimum Sea Water Temperature in September: 77.4°F
Average water temperature in September: 84.0°F

Sea Water Temperature for the Last 10 Days:

September 15 87.6°F September 10 86.6°F
September 14 86.4°F September 09 86.4°F
September 13 86.8°F September 08 87.6°F
September 12 86.8°F September 07 88.2°F
September 11 86.8°F September 06 89.0°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 July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for North Myrtle Beach was 88.5°F. The maximum and minimum values were 87.0°F and 89.6°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for North Myrtle Beach was 87.7°F. The maximum and minimum values were 86.0°F and 89.6°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for North Myrtle Beach was 87.4°F. The maximum and minimum values were 86.4°F and 89.0°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 90.0 °F
August 88.2 °F
June 86.5 °F
Warmest sea temperature:
July 87.1 °F
August 87.1 °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 4 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 +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +70
Sarasota +86
Washington +66
24 Hours Weather Forecast
North Myrtle Beach
Local time: 10:33
15 sep, tuesday
1200 84°F
SW
11 mph
1500 86°F
W
11 mph
1800 82°F
W
12 mph
2100 80°F
W
12 mph
16 sep, wednesday
0000 78°F
SW
12 mph
0300 74°F
SW
11 mph
0600 72°F
SW
10 mph
0900 74°F
SW
11 mph