World Resorts USA St. George Island Weather

St. George Island Sea Temperature in September

Average sea water temperature in September:
+84.0°F
Minimum sea water temperature in September: 87.1°F
Maximum sea water temperature in September: 79.2°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 85.2°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.6°F.

Monthly sea water temperature in St. George Island, °F

Which USA resorts have warmest sea in September?

Place name September 2026 September 2025
Key West 87.8°F 86.9°F
Key Largo 87.2°F 86.6°F
Naples 87.0°F 86.1°F
Siesta Key 86.9°F 84.9°F
Houston 86.9°F 84.9°F
Corpus Christi 86.8°F 85.8°F
Sarasota 86.8°F 84.8°F
West Palm Beach 86.6°F 86.2°F
Fort Lauderdale 86.6°F 86.4°F
New Orleans 86.4°F 84.3°F
Cape Coral 86.3°F 85.2°F
Long Beach (MS) 86.2°F 84.0°F
Orange Beach 86.0°F 84.0°F
Pensacola Beach 85.9°F 83.9°F
Tampa 85.9°F 84.3°F
Clearwater Beach 85.9°F 84.0°F
Miami Beach 85.8°F 86.1°F
Panama City Beach 85.8°F 83.4°F
Fort Walton Beach 85.7°F 83.3°F
Pensacola 85.7°F 83.9°F

Best time for vacation in St. George Island

Sunniest months:
October 20 days
March 16 days
April 16 days
Warmest months:
July 87.1 °F
August 86.6 °F
June 85.0 °F
Warmest sea temp:
August 86.5 °F
July 85.6 °F
September 84.0 °F
Coldest months:
January 58.9 °F
December 62.5 °F
February 63.0 °F
Rainiest months:
August 5 days
July 4 days
September 3 days
Windiest months:
January 9.4 mph
November 8.9 mph
March 8.9 mph

St. George Island on a weather map

St. George Island
+72°F
S 6 mph
Feels like: +72°F
Precip.: 7%
Places in USA:
Name
°F
+54°F
+59°F
+79°F
+63°F
+64°F
+82°F
+72°F
+68°F
+63°F
+66°F
+57°F
+63°F
+72°F
+73°F
+75°F
24 Hours Forecast
St. George Island
Local time: 01:56
October 13, tuesday
0300
72°F
S
6 mph
0600
70°F
S
6 mph
0900
72°F
S
7 mph
1200
82°F
SW
6 mph
1500
84°F
NW
6 mph
1800
79°F
NE
6 mph
2100
75°F
E
3 mph
October 14, wednesday
0000
73°F
S
2 mph
Units of measurement: °C / °F