31.12
wed
wed
Day
46°F
SE 11 mph
Precip.
0%
0%
Night
46°F
E 10 mph
Precip.
0%
0%
01.01
thu
thu
Day
55°F
E 11 mph
Precip.
0%
0%
Night
54°F
E 7 mph
Precip.
0%
0%
02.01
fri
fri
Day
57°F
NE 8 mph
Precip.
0%
0%
Night
59°F
NE 12 mph
Precip.
0%
0%
03.01
sat
sat
Day
64°F
NE 11 mph
Precip.
70%
70%
Night
59°F
E 4 mph
Precip.
100%
100%
04.01
sun
sun
Day
61°F
SW 11 mph
Precip.
0%
0%
Night
55°F
SW 7 mph
Precip.
0%
0%
05.01
mon
mon
Day
61°F
NE 6 mph
Precip.
0%
0%
Night
55°F
E 6 mph
Precip.
0%
0%
06.01
tue
tue
Day
63°F
SE 4 mph
Precip.
0%
0%
Night
59°F
W 4 mph
Precip.
0%
0%
07.01
wed
wed
Day
64°F
W 5 mph
Precip.
0%
0%
Night
61°F
NW 5 mph
Precip.
0%
0%
08.01
thu
thu
Day
68°F
NE 11 mph
Precip.
0%
0%
Night
66°F
NE 13 mph
Precip.
100%
100%
09.01
fri
fri
Day
59°F
SE 10 mph
Precip.
0%
0%
Night
52°F
S 6 mph
Precip.
0%
0%
10.01
sat
sat
Day
59°F
SW 5 mph
Precip.
0%
0%
Night
57°F
NW 7 mph
Precip.
0%
0%
11.01
sun
sun
Day
57°F
SW 8 mph
Precip.
100%
100%
Night
57°F
SW 11 mph
Precip.
20%
20%
12.01
mon
mon
Day
55°F
SW 11 mph
Precip.
100%
100%
Night
57°F
SW 9 mph
Precip.
100%
100%
13.01
tue
tue
Day
57°F
W 7 mph
Precip.
0%
0%
Night
59°F
SE 5 mph
Precip.
100%
100%
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 58.1°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: 14:50
December 31, wednesday
1500
55°F
E
11 mph
11 mph
1800
55°F
E
11 mph
11 mph
2100
50°F
E
9 mph
9 mph
January 01, thursday
0000
46°F
E
10 mph
10 mph
0300
45°F
E
11 mph
11 mph
0600
43°F
E
11 mph
11 mph
0900
46°F
E
9 mph
9 mph
1200
55°F
E
11 mph
11 mph
