18.03
wed
wed
Day
54°F
SW 9 mph
Precip.
0%
0%
Night
52°F
SW 9 mph
Precip.
0%
0%
19.03
thu
thu
Day
59°F
SW 12 mph
Precip.
0%
0%
Night
57°F
SW 6 mph
Precip.
0%
0%
20.03
fri
fri
Day
64°F
SW 8 mph
Precip.
0%
0%
Night
59°F
N 6 mph
Precip.
0%
0%
21.03
sat
sat
Day
72°F
E 9 mph
Precip.
0%
0%
Night
63°F
NE 9 mph
Precip.
0%
0%
22.03
sun
sun
Day
75°F
NE 7 mph
Precip.
0%
0%
Night
68°F
NE 9 mph
Precip.
0%
0%
23.03
mon
mon
Day
75°F
E 9 mph
Precip.
0%
0%
Night
68°F
N 9 mph
Precip.
0%
0%
24.03
tue
tue
Day
59°F
SW 20 mph
Precip.
51%
51%
Night
59°F
SW 16 mph
Precip.
0%
0%
25.03
wed
wed
Day
64°F
SW 17 mph
Precip.
78%
78%
Night
61°F
W 8 mph
Precip.
68%
68%
26.03
thu
thu
Day
68°F
SW 11 mph
Precip.
0%
0%
Night
64°F
N 6 mph
Precip.
0%
0%
27.03
fri
fri
Day
75°F
NE 4 mph
Precip.
0%
0%
Night
61°F
NE 18 mph
Precip.
0%
0%
28.03
sat
sat
Day
50°F
SW 20 mph
Precip.
0%
0%
Night
52°F
SW 12 mph
Precip.
0%
0%
29.03
sun
sun
Day
61°F
SW 12 mph
Precip.
0%
0%
Night
55°F
SW 9 mph
Precip.
0%
0%
30.03
mon
mon
Day
63°F
SW 16 mph
Precip.
23%
23%
Night
57°F
W 14 mph
Precip.
0%
0%
31.03
tue
tue
Day
64°F
W 12 mph
Precip.
100%
100%
Night
61°F
W 7 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 March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 61.7°F. The highest and lowest sea temperatures during the month were 66.0°F and 55.6°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 71.5°F. The highest and lowest sea temperatures during the month were 76.1°F and 66.6°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: 19:00
March 18, wednesday
2100
52°F
SW
9 mph
9 mph
March 19, thursday
0000
52°F
SW
9 mph
9 mph
0300
52°F
S
10 mph
10 mph
0600
50°F
S
11 mph
11 mph
0900
54°F
S
12 mph
12 mph
1200
59°F
SW
12 mph
12 mph
1500
63°F
SW
12 mph
12 mph
1800
61°F
SW
11 mph
11 mph
