Current sea water temperature:
+63.0°F
| Minimum sea water temperature in March: | 71.2°F |
| Maximum sea water temperature in March: | 55.6°F |
| Average sea water temperature in March: | 62.7°F |
| more information | |
14 days
forecast
forecast
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
Sea water temperature for the last 10 days:
| March 18 | 63.0°F | March 13 | 65.7°F |
| March 17 | 64.8°F | March 12 | 66.0°F |
| March 16 | 62.6°F | March 11 | 65.8°F |
| March 15 | 63.0°F | March 10 | 64.8°F |
| March 14 | 63.9°F | March 9 | 63.3°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 87.6°F and 81.7°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
March
March
| 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: 21:41
March 19, thursday
0000
48°F
SW
8 mph
8 mph
0300
45°F
S
10 mph
10 mph
0600
48°F
S
11 mph
11 mph
0900
52°F
S
12 mph
12 mph
1200
61°F
SW
12 mph
12 mph
1500
61°F
SW
12 mph
12 mph
1800
59°F
W
11 mph
11 mph
2100
57°F
SW
7 mph
7 mph
