Current Sea Water Temperature:
+91.2°F
| Maximum Sea Water Temperature in July: | 91.6°F |
| Minimum Sea Water Temperature in July: | 84.0°F |
| Average water temperature in July: | 88.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 28 | 91.2°F | July 23 | 90.0°F |
| July 27 | 89.8°F | July 22 | 90.0°F |
| July 26 | 89.8°F | July 21 | 89.6°F |
| July 25 | 89.8°F | July 20 | 89.4°F |
| July 24 | 89.0°F | July 19 | 87.8°F |
When is the Warmest Sea for St. Simons Island?
According to our data for the last three years for St. Simons Island the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
15
30
45
60
75
90
105
120
60.6
69.8
77.1
85.8
88.9
88.4
84.6
78.8
71.5
64.3
57.6
56.7
Sea Water Temperature in August
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
81
84
87
90
93
96
The average sea surface temperature in August 2024 for St. Simons Island was 87.9°F. The maximum and minimum values were 85.6°F and 90.2°F respectively.
Sea Water Temperature in July
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
81
84
87
90
93
96
The average sea surface temperature in July 2025 for St. Simons Island was 88.0°F. The maximum and minimum values were 85.2°F and 91.2°F respectively.
Sea Water Temperature in September
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
76
79
82
85
88
91
94
97
The average sea surface temperature in September 2024 for St. Simons Island was 85.4°F. The maximum and minimum values were 80.8°F and 90.2°F respectively.
USA Resorts:
NAME
F°
| Boston |  |
+80 |
| Chicago |  |
+80 |
| Hawaii | |
+82 |
| Honolulu | |
+82 |
| Houston |  |
+92 |
| Las Vegas | |
+110 |
| Los Angeles |  |
+80 |
| Miami |  |
+88 |
| Myrtle Beach | |
+86 |
| New York | |
+82 |
| San Diego | |
+72 |
| San Francisco |  |
+60 |
| Santa Monica | |
+72 |
| Sarasota | |
+88 |
| Tampa | |
+92 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
St. Simons Island
Local time: 20:50
28 jul, monday
| 2100 |  |
94°F | N 10 mph |
29 jul, tuesday
| 0000 |  |
92°F | N 11 mph |
| 0300 |  |
90°F | N 5 mph |
| 0600 | |
90°F | N 7 mph |
| 0900 |  |
92°F | N 8 mph |
| 1200 |  |
98°F | NW 8 mph |
| 1500 | |
94°F | NW 14 mph |
| 1800 |  |
90°F | NW 13 mph |