09.15
tue
tue
DAY
96°F
W 9 mph
precip
8%
8%
NIGHT
78°F
W 7 mph
precip
16%
16%
09.16
wed
wed
DAY
90°F
SW 11 mph
precip
9%
9%
NIGHT
78°F
SW 5 mph
precip
5%
5%
09.17
thu
thu
DAY
88°F
SW 10 mph
precip
5%
5%
NIGHT
76°F
SW 3 mph
precip
9%
9%
09.18
fri
fri
DAY
92°F
W 6 mph
precip
1%
1%
NIGHT
78°F
NW 3 mph
precip
9%
9%
09.19
sat
sat
DAY
92°F
W 8 mph
precip
4%
4%
NIGHT
78°F
W 3 mph
precip
28%
28%
09.20
sun
sun
DAY
86°F
W 6 mph
precip
49%
49%
NIGHT
78°F
W 3 mph
precip
21%
21%
09.21
mon
mon
DAY
80°F
W 3 mph
precip
65%
65%
NIGHT
78°F
W 4 mph
precip
29%
29%
09.22
tue
tue
DAY
94°F
NE 3 mph
precip
9%
9%
NIGHT
80°F
SW 2 mph
precip
18%
18%
09.23
wed
wed
DAY
94°F
SW 4 mph
precip
36%
36%
NIGHT
80°F
N 3 mph
precip
28%
28%
09.24
thu
thu
DAY
92°F
E 5 mph
precip
13%
13%
NIGHT
74°F
NE 5 mph
precip
74%
74%
09.25
fri
fri
DAY
84°F
SW 8 mph
precip
8%
8%
NIGHT
74°F
SW 5 mph
precip
8%
8%
09.26
sat
sat
DAY
86°F
SW 11 mph
precip
2%
2%
NIGHT
78°F
SW 7 mph
precip
19%
19%
09.27
sun
sun
DAY
84°F
SW 12 mph
precip
27%
27%
NIGHT
78°F
SW 9 mph
precip
21%
21%
09.28
mon
mon
DAY
82°F
SW 9 mph
precip
9%
9%
NIGHT
74°F
SE 5 mph
precip
19%
19%
Sea water
temperature
temperature
| St. Simons Island |
Weather in
September
September
| St. Simons Island |
7 day weather
forecast
forecast
| St. Simons Island |
10 day weather
forecast
forecast
| St. Simons Island |
14 day weather
forecast
forecast
| St. Simons Island |
Monthly weather
averages
averages
| St. Simons Island |
Current Weather
Conditions
Conditions
| St. Simons Island |
When is the Best
Time to Visit?
Time to Visit?
| St. Simons Island |
St. Simons Island Sea Water Temperature in September, °F
The average sea surface temperature in September 2026 for St. Simons Island was 88.6°F. The maximum and minimum values were 86.8°F and 90.0°F respectively.
St. Simons Island on the Weather Map
USA Resorts:
NAME
F°
| Boston |  |
+64 |
| Chicago |  |
+66 |
| Hawaii |  |
+80 |
| Las Vegas | |
+80 |
| Los Angeles |  |
+74 |
| Maui |  |
+66 |
| Miami |  |
+92 |
| Myrtle Beach | |
+88 |
| New York | |
+72 |
| Panama City Beach | |
+90 |
| San Diego | |
+72 |
| San Francisco | |
+60 |
| Santa Monica | |
+72 |
| Sarasota | |
+94 |
| Washington | |
+76 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
St. Simons Island
Local time: 11:13
15 sep, tuesday
| 1200 | |
96°F | W 9 mph |
| 1500 | |
94°F | W 11 mph |
| 1800 | |
84°F | W 9 mph |
| 2100 | |
78°F | W 7 mph |
16 sep, wednesday
| 0000 | |
78°F | W 7 mph |
| 0300 | |
78°F | W 7 mph |
| 0600 | |
78°F | SW 6 mph |
| 0900 | |
84°F | SW 8 mph |