World Resorts USA St. Simons Island Weather

St. Simons Island Sea Temperature in October

Average sea water temperature in October:
+74.4°F
Minimum sea water temperature in October: 81.1°F
Maximum sea water temperature in October: 66.7°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 74.5°F. The highest and lowest sea temperatures during the month were 80.8°F and 68.2°F.

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

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
Key West 83.8°F 82.9°F
West Palm Beach 83.5°F 83.3°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Everglades 82.5°F 82.6°F
Corpus Christi 82.2°F 80.6°F
Marco Island 82.0°F 81.9°F
Naples 81.9°F 81.6°F
Sanibel Island 81.6°F 81.3°F
Kauai 81.3°F 79.2°F
Galveston Island 81.1°F 79.2°F
Kailua Kona 80.9°F 80.6°F
Galveston 80.8°F 78.8°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Siesta Key 80.4°F 80.7°F
Houston 80.4°F 78.8°F

Best time for vacation in St. Simons Island

Sunniest months:
January 15 days
October 15 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 59.4 °F
December 62.5 °F
February 64.8 °F
Rainiest months:
August 5 days
July 5 days
September 4 days
Windiest months:
January 6.9 mph
December 6.8 mph
October 6.7 mph

St. Simons Island on a weather map

St. Simons Island
+41°F
E 6 mph
Feels like: +36°F
Precip.: 0%
Places in USA:
Name
°F
+19°F
+75°F
+75°F
+59°F
+64°F
+46°F
+52°F
+68°F
+10°F
+57°F
+57°F
+48°F
+45°F
+48°F
+28°F
24 Hours Forecast
St. Simons Island
Local time: 00:25
February 06, friday
0300
39°F
E
9 mph
0600
36°F
E
11 mph
0900
37°F
E
12 mph
1200
48°F
E
12 mph
1500
57°F
E
14 mph
1800
61°F
E
14 mph
2100
55°F
E
14 mph
February 07, saturday
0000
54°F
E
14 mph
Units of measurement: °C / °F