Current sea water temperature:
+58.1°F
| Minimum sea water temperature in January: | 64.6°F |
| Maximum sea water temperature in January: | 48.9°F |
| Average sea water temperature in January: | 56.0°F |
| more information | |
14 days
forecast
forecast
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
Sea water temperature for the last 10 days:
| January 13 | 58.1°F | January 8 | 54.7°F |
| January 12 | 58.8°F | January 7 | 54.3°F |
| January 11 | 57.4°F | January 6 | 54.5°F |
| January 10 | 55.9°F | January 5 | 55.6°F |
| January 9 | 53.8°F | January 4 | 54.3°F |
Monthly sea water temperature, °F
When is the warmest sea in St. Simons Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in St. Simons Island was noticed in August, July and September.
Monthly Sea Temperatures in St. Simons Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.7°F. The highest and lowest sea temperatures during the month were 87.6°F and 83.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 87.6°F and 81.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.7°F. The highest and lowest sea temperatures during the month were 83.5°F and 77.9°F.
current
weather
weather
| St. Simons Island |
weather in
January
January
| St. Simons Island |
Best time for vacation in St. Simons Island
St. Simons Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. Simons Island
Local time: 03:18
January 13, tuesday
0600
43°F
S
7 mph
7 mph
0900
45°F
S
7 mph
7 mph
1200
50°F
S
6 mph
6 mph
1500
54°F
SW
3 mph
3 mph
1800
55°F
W
4 mph
4 mph
2100
55°F
NW
3 mph
3 mph
January 14, wednesday
0000
54°F
E
3 mph
3 mph
0300
54°F
E
5 mph
5 mph
