World Resorts USA Myrtle Beach Weather

Myrtle Beach Sea Temperature in September

Average sea water temperature in September:
+80.4°F
Minimum sea water temperature in September: 85.3°F
Maximum sea water temperature in September: 75.2°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 78.6°F. The highest and lowest sea temperatures during the month were 81.1°F and 75.6°F.

Monthly sea water temperature in Myrtle Beach, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Tampa 84.3°F 86.0°F
New Orleans 84.3°F 82.9°F
St. Petersburg 84.1°F 86.1°F
Clearwater Beach 84.0°F 86.2°F
Pensacola 83.9°F 84.2°F
Panama City Beach 83.4°F 84.8°F
Destin 83.1°F 84.5°F
Orlando 82.8°F 83.6°F
Daytona Beach 82.7°F 83.2°F

Best time for vacation in Myrtle Beach

Sunniest months:
October 17 days
April 17 days
November 16 days
Warmest months:
July 87.0 °F
August 85.5 °F
June 84.7 °F
Warmest sea temp:
August 83.0 °F
July 82.9 °F
September 80.4 °F
Coldest months:
January 53.8 °F
December 57.2 °F
February 57.8 °F
Rainiest months:
August 5 days
July 4 days
June 3 days
Windiest months:
March 8.9 mph
February 8.7 mph
April 8.7 mph

Myrtle Beach on a weather map

Myrtle Beach
+81°F
NE 3 mph
Feels like: +88°F
Precip.: 12%
Places in USA:
Name
°F
+79°F
+77°F
+86°F
+66°F
+82°F
+70°F
+81°F
+75°F
+64°F
+57°F
+66°F
+88°F
+82°F
+77°F
+79°F
24 Hours Forecast
Myrtle Beach
Local time: 07:55
July 16, thursday
0900
81°F
NE
3 mph
1200
93°F
N
6 mph
1500
93°F
NW
12 mph
1800
88°F
N
12 mph
2100
82°F
NE
11 mph
July 17, friday
0000
81°F
NE
8 mph
0300
81°F
NE
6 mph
0600
79°F
NE
6 mph
Units of measurement: °C / °F