Current sea water temperature:
+68.5°F
| Minimum sea water temperature in October: | 81.1°F |
| Maximum sea water temperature in October: | 66.7°F |
| Average sea water temperature in October: | 74.8°F |
| more information | |
14 days
forecast
forecast
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
Sea water temperature for the last 10 days:
| October 24 | 68.5°F | October 19 | 78.1°F |
| October 23 | 69.1°F | October 18 | 78.8°F |
| October 22 | 72.0°F | October 17 | 78.8°F |
| October 21 | 74.8°F | October 16 | 78.1°F |
| October 20 | 76.5°F | October 15 | 77.9°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 85.2°F. The highest and lowest sea temperatures during the month were 86.9°F and 83.8°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 83.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 78.6°F.
current
weather
weather
| St. Simons Island |
weather in
October
October
| 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: 00:18
October 25, sunday
0300
66°F
SW
12 mph
12 mph
0600
63°F
S
11 mph
11 mph
0900
63°F
S
11 mph
11 mph
1200
72°F
SW
13 mph
13 mph
1500
73°F
SW
15 mph
15 mph
1800
70°F
SW
14 mph
14 mph
2100
66°F
SW
13 mph
13 mph
October 26, monday
0000
66°F
SW
12 mph
12 mph
