World Resorts USA St. Simons Island Weather

St. Simons Island Sea Temperature in August

Average sea water temperature in August:
+85.1°F
Minimum sea water temperature in August: 87.8°F
Maximum sea water temperature in August: 82.0°F

Daily 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.

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

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Islamorada 88.8°F 87.3°F
Key West 88.8°F 87.8°F
Cape Coral 88.7°F 86.8°F
Key Largo 88.7°F 87.3°F
Naples 88.7°F 87.0°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
Cocoa Beach 86.8°F 84.5°F
Bay Saint Louis 86.6°F 87.6°F
Pensacola 86.5°F 87.2°F

Best time for vacation in St. Simons Island

Sunniest months:
October 15 days
January 14 days
March 14 days
Warmest months:
July 88.3 °F
August 86.9 °F
June 86.1 °F
Warmest sea temp:
August 85.1 °F
July 84.6 °F
September 82.0 °F
Coldest months:
January 59.8 °F
December 62.7 °F
February 64.8 °F
Rainiest months:
August 5 days
July 5 days
September 4 days
Windiest months:
December 6.7 mph
October 6.7 mph
January 6.7 mph

St. Simons Island on a weather map

St. Simons Island
+50°F
S 5 mph
Feels like: +48°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+46°F
+54°F
+72°F
+75°F
+70°F
+30°F
+50°F
+55°F
+59°F
+59°F
+61°F
+32°F
24 Hours Forecast
St. Simons Island
Local time: 09:43
December 17, wednesday
1200
63°F
S
4 mph
1500
66°F
SW
6 mph
1800
63°F
SW
6 mph
2100
57°F
SW
6 mph
December 18, thursday
0000
57°F
W
6 mph
0300
57°F
NW
4 mph
0600
57°F
NW
2 mph
0900
59°F
NW
5 mph
Units of measurement: °C / °F