World Resorts USA St. Simons Island Weather

St. Simons Island Sea Temperature in July

Average sea water temperature in July:
+84.8°F
Minimum sea water temperature in July: 87.6°F
Maximum sea water temperature in July: 80.6°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 86.0°F. The highest and lowest sea temperatures during the month were 87.4°F and 84.2°F.

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

Which USA resorts have warmest sea in July?

Place name July 2026 July 2025
Key West 88.5°F 86.7°F
Key Largo 88.2°F 86.2°F
Clearwater Beach 87.9°F 87.1°F
Naples 87.7°F 86.6°F
Tampa 87.6°F 86.8°F
Sarasota 87.6°F 86.9°F
Cape Coral 87.6°F 86.4°F
Siesta Key 87.6°F 86.9°F
New Orleans 87.5°F 87.4°F
Miami 87.4°F 86.3°F
Miami Beach 87.0°F 86.0°F
Houston 86.7°F 86.3°F
Fort Lauderdale 86.6°F 85.0°F
Galveston 86.4°F 86.4°F
Hilton Head Island 86.3°F 85.7°F
St. George Island 86.3°F 86.4°F
Tybee Island 86.3°F 85.4°F
Pensacola 86.1°F 86.9°F
Jekyll Island 86.1°F 84.6°F
Orange Beach 86.1°F 86.7°F

Best time for vacation in St. Simons Island

Sunniest months:
January 15 days
October 15 days
April 15 days
Warmest months:
July 89.1 °F
August 87.4 °F
June 86.3 °F
Warmest sea temp:
August 85.1 °F
July 84.8 °F
September 82.2 °F
Coldest months:
January 59.4 °F
December 62.5 °F
February 64.1 °F
Rainiest months:
August 5 days
July 4 days
September 4 days
Windiest months:
February 6.9 mph
January 6.9 mph
April 6.9 mph

St. Simons Island on a weather map

St. Simons Island
+68°F
SW 12 mph
Feels like: +68°F
Precip.: 8%
Places in USA:
Name
°F
+48°F
+52°F
+77°F
+63°F
+72°F
+79°F
+72°F
+55°F
+70°F
+59°F
+70°F
+70°F
+73°F
+61°F
24 Hours Forecast
St. Simons Island
Local time: 00:52
October 25, sunday
0300
66°F
SW
12 mph
0600
63°F
S
11 mph
0900
63°F
S
11 mph
1200
72°F
SW
13 mph
1500
73°F
SW
15 mph
1800
70°F
SW
14 mph
2100
66°F
SW
13 mph
October 26, monday
0000
66°F
SW
12 mph
Units of measurement: °C / °F