29.04
wed
wed
Day
79°F
N 7 mph
Precip.
0%
0%
Night
72°F
N 6 mph
Precip.
0%
0%
30.04
thu
thu
Day
72°F
E 7 mph
Precip.
0%
0%
Night
70°F
NW 4 mph
Precip.
63%
63%
01.05
fri
fri
Day
75°F
W 10 mph
Precip.
68%
68%
Night
72°F
N 11 mph
Precip.
0%
0%
02.05
sat
sat
Day
84°F
NE 17 mph
Precip.
0%
0%
Night
63°F
SW 7 mph
Precip.
70%
70%
03.05
sun
sun
Day
68°F
SW 10 mph
Precip.
72%
72%
Night
61°F
SW 8 mph
Precip.
0%
0%
04.05
mon
mon
Day
70°F
SW 9 mph
Precip.
0%
0%
Night
64°F
N 6 mph
Precip.
0%
0%
05.05
tue
tue
Day
75°F
NW 6 mph
Precip.
0%
0%
Night
68°F
N 11 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 April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 69.0°F. The highest and lowest sea temperatures during the month were 71.8°F and 64.4°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 82.4°F and 73.8°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: 08:22
April 29, wednesday
0900
73°F
NE
8 mph
8 mph
1200
79°F
N
7 mph
7 mph
1500
81°F
NW
9 mph
9 mph
1800
77°F
NW
12 mph
12 mph
2100
73°F
NW
11 mph
11 mph
April 30, thursday
0000
72°F
N
6 mph
6 mph
0300
70°F
E
9 mph
9 mph
0600
68°F
E
11 mph
11 mph
