World Resorts USA Charleston Weather

Charleston Sea Temperature in January

Average sea water temperature in January:
+57.8°F
Minimum sea water temperature in January: 67.6°F
Maximum sea water temperature in January: 44.4°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 53.8°F. The highest and lowest sea temperatures during the month were 58.1°F and 47.1°F.

Monthly sea water temperature in Charleston, °F

Which USA resorts have warmest sea in January?

Place name January 2026 January 2025
Kailua Kona 78.3°F 78.2°F
Honolulu 77.2°F 77.6°F
Hawaii 77.2°F 77.5°F
Maui 77.0°F 76.9°F
Kauai 77.0°F 75.0°F
West Palm Beach 76.6°F 75.5°F
Oahu 76.1°F 76.5°F
Fort Lauderdale 75.9°F 75.1°F
Miami Beach 74.0°F 73.1°F
Islamorada 72.8°F 71.3°F
Key West 72.5°F 70.3°F
Key Largo 71.7°F 71.1°F
Miami 71.2°F 70.7°F
Everglades 70.8°F 68.6°F
South Padre Island 69.5°F 66.7°F
Marco Island 68.2°F 65.2°F
Naples 67.7°F 64.7°F
Cape Coral 67.3°F 64.3°F
Cocoa Beach 66.9°F 60.9°F
Siesta Key 65.0°F 61.5°F

Best time for vacation in Charleston

Sunniest months:
October 15 days
April 15 days
May 15 days
Warmest months:
July 89.5 °F
August 87.7 °F
June 86.2 °F
Warmest sea temp:
August 83.7 °F
July 83.7 °F
September 81.0 °F
Coldest months:
January 55.7 °F
February 59.9 °F
December 60.5 °F
Rainiest months:
August 9 days
July 8 days
June 7 days
Windiest months:
March 9.5 mph
April 9.4 mph
February 9.0 mph

Charleston on a weather map

Charleston
+64°F
N 7 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
+70°F
+73°F
+73°F
+79°F
+68°F
+73°F
+77°F
+70°F
+61°F
+68°F
+55°F
+73°F
+75°F
+72°F
+41°F
24 Hours Forecast
Charleston
Local time: 20:41
April 01, wednesday
2100
64°F
N
7 mph
April 02, thursday
0000
61°F
N
6 mph
0300
61°F
N
6 mph
0600
59°F
NW
6 mph
0900
64°F
NW
6 mph
1200
72°F
NW
7 mph
1500
73°F
NW
9 mph
1800
70°F
NW
7 mph
Units of measurement: °C / °F