25.12
thu
thu
Day
68°F
E 3 mph
Precip.
0%
0%
Night
63°F
E 6 mph
Precip.
0%
0%
26.12
fri
fri
Day
55°F
E 7 mph
Precip.
0%
0%
Night
55°F
NE 8 mph
Precip.
0%
0%
27.12
sat
sat
Day
59°F
E 9 mph
Precip.
0%
0%
Night
61°F
E 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
64°F
SW 8 mph
Precip.
0%
0%
Night
63°F
N 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
66°F
E 12 mph
Precip.
23%
23%
Night
48°F
SE 12 mph
Precip.
0%
0%
30.12
tue
tue
Day
46°F
S 7 mph
Precip.
0%
0%
Night
43°F
SE 5 mph
Precip.
0%
0%
31.12
wed
wed
Day
50°F
NE 3 mph
Precip.
0%
0%
Night
46°F
E 5 mph
Precip.
0%
0%
sea water
temperature
temperature
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
current
weather
weather
| St. Simons Island |
14 days
forecast
forecast
| St. Simons Island |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 58.0°F. The highest and lowest sea temperatures during the month were 64.0°F and 53.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 52.9°F. The highest and lowest sea temperatures during the month were 58.1°F and 48.9°F.
Air temperature in St. Simons Island, °F
Precipitation total in St. Simons Island, in.
* Charts above show average data for the last 3 years.
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: 17:59
December 25, thursday
1800
64°F
NE
2 mph
2 mph
2100
64°F
NE
4 mph
4 mph
December 26, friday
0000
63°F
E
6 mph
6 mph
0300
59°F
E
6 mph
6 mph
0600
57°F
E
6 mph
6 mph
0900
55°F
E
6 mph
6 mph
1200
55°F
E
7 mph
7 mph
1500
55°F
E
6 mph
6 mph
