World Resorts USA St. Simons Island Weather

St. Simons Island Sea Temperature in January

Average sea water temperature in January:
+55.8°F
Minimum sea water temperature in January: 64.6°F
Maximum sea water temperature in January: 48.9°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 54.4°F. The highest and lowest sea temperatures during the month were 58.8°F and 50.2°F.

Monthly sea water temperature in St. Simons Island, °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
Kahului 77.2°F 77.1°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
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
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
Sarasota 65.0°F 61.2°F

Best time for vacation in St. Simons Island

Sunniest months:
January 15 days
October 15 days
April 15 days
Warmest months:
July 88.3 °F
August 86.9 °F
June 86.1 °F
Warmest sea temp:
August 85.1 °F
July 84.6 °F
September 82.0 °F
Coldest months:
January 59.4 °F
December 62.5 °F
February 64.1 °F
Rainiest months:
August 5 days
July 5 days
September 4 days
Windiest months:
February 6.9 mph
January 6.9 mph
April 6.9 mph

St. Simons Island on a weather map

St. Simons Island
+73°F
NE 8 mph
Feels like: +75°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+73°F
+73°F
+57°F
+55°F
+79°F
+79°F
+66°F
+54°F
+54°F
+50°F
+77°F
+75°F
+77°F
+54°F
24 Hours Forecast
St. Simons Island
Local time: 09:33
April 29, wednesday
1200
79°F
N
7 mph
1500
81°F
NW
9 mph
1800
77°F
NW
12 mph
2100
73°F
NW
11 mph
April 30, thursday
0000
72°F
N
6 mph
0300
70°F
E
9 mph
0600
68°F
E
11 mph
0900
66°F
S
9 mph
Units of measurement: °C / °F