26.12
fri
fri
Day
59°F
E 6 mph
Precip.
0%
0%
Night
61°F
E 7 mph
Precip.
0%
0%
27.12
sat
sat
Day
63°F
E 7 mph
Precip.
0%
0%
Night
63°F
E 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
63°F
NE 1 mph
Precip.
0%
0%
Night
66°F
N 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
70°F
NE 11 mph
Precip.
0%
0%
Night
63°F
SE 7 mph
Precip.
66%
66%
30.12
tue
tue
Day
52°F
SE 9 mph
Precip.
0%
0%
Night
48°F
NE 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
52°F
NE 7 mph
Precip.
0%
0%
Night
46°F
SE 5 mph
Precip.
0%
0%
01.01
thu
thu
Day
54°F
E 6 mph
Precip.
0%
0%
Night
48°F
E 7 mph
Precip.
0%
0%
02.01
fri
fri
Day
57°F
E 10 mph
Precip.
0%
0%
Night
54°F
E 7 mph
Precip.
0%
0%
03.01
sat
sat
Day
57°F
SW 12 mph
Precip.
29%
29%
Night
54°F
SW 16 mph
Precip.
0%
0%
04.01
sun
sun
Day
55°F
SW 12 mph
Precip.
100%
100%
Night
57°F
SW 9 mph
Precip.
100%
100%
05.01
mon
mon
Day
59°F
SW 9 mph
Precip.
100%
100%
Night
57°F
N 2 mph
Precip.
0%
0%
06.01
tue
tue
Day
63°F
NW 2 mph
Precip.
29%
29%
Night
61°F
N 6 mph
Precip.
0%
0%
07.01
wed
wed
Day
68°F
N 8 mph
Precip.
0%
0%
Night
64°F
N 9 mph
Precip.
0%
0%
sea water
temperature
temperature
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
current
weather
weather
| St. Simons Island |
7 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: 02:14
December 26, friday
0300
57°F
E
6 mph
6 mph
0600
55°F
E
6 mph
6 mph
0900
57°F
E
6 mph
6 mph
1200
59°F
E
6 mph
6 mph
1500
61°F
NE
6 mph
6 mph
1800
61°F
NE
5 mph
5 mph
2100
61°F
E
6 mph
6 mph
December 27, saturday
0000
61°F
E
7 mph
7 mph
