Current sea water temperature:
+85.3°F
| Minimum sea water temperature in August: | 87.8°F |
| Maximum sea water temperature in August: | 82.0°F |
| Average sea water temperature in August: | 85.1°F |
| more information | |
14 days
forecast
forecast
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
Sea water temperature for the last 10 days:
| August 13 | 85.3°F | August 8 | 84.7°F |
| August 12 | 85.3°F | August 7 | 83.8°F |
| August 11 | 84.7°F | August 6 | 84.6°F |
| August 10 | 84.7°F | August 5 | 84.7°F |
| August 9 | 84.9°F | August 4 | 85.5°F |
Monthly sea water temperature, °F
When is the warmest sea in St. Simons Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in St. Simons Island was noticed in August, July and September.
Monthly Sea Temperatures in St. Simons Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.7°F. The highest and lowest sea temperatures during the month were 87.6°F and 83.5°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 86.0°F. The highest and lowest sea temperatures during the month were 87.4°F and 84.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.7°F. The highest and lowest sea temperatures during the month were 83.5°F and 77.9°F.
current
weather
weather
| St. Simons Island |
weather in
August
August
| St. Simons Island |
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: 22:24
August 14, friday
0000
81°F
NE
10 mph
10 mph
0300
81°F
E
6 mph
6 mph
0600
79°F
E
6 mph
6 mph
0900
82°F
E
5 mph
5 mph
1200
93°F
NE
3 mph
3 mph
1500
91°F
NW
10 mph
10 mph
1800
88°F
N
12 mph
12 mph
2100
82°F
NE
11 mph
11 mph
