World Resorts USA St. Simons Island Weather

St. Simons Island Sea Temperature in April

Average sea water temperature in April:
+69.4°F
Minimum sea water temperature in April: 76.1°F
Maximum sea water temperature in April: 61.9°F

Daily sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 71.5°F. The highest and lowest sea temperatures during the month were 76.1°F and 66.6°F.

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

Which USA resorts have warmest sea in April?

Place name April 2025 April 2024
Everglades 78.8°F 78.0°F
Key Largo 78.5°F 77.3°F
Islamorada 78.4°F 77.5°F
Miami Beach 78.3°F 77.1°F
Kailua Kona 78.1°F 76.9°F
Fort Lauderdale 78.0°F 76.9°F
Key West 78.0°F 77.6°F
Miami 77.9°F 76.9°F
Honolulu 77.4°F 76.2°F
Hawaii 77.3°F 76.1°F
Cape Coral 77.2°F 76.3°F
Naples 77.0°F 76.3°F
Sanibel Island 76.7°F 75.8°F
Tampa 76.6°F 74.1°F
Maui 76.6°F 75.4°F
Oahu 76.4°F 75.0°F
Sarasota 76.0°F 74.3°F
Siesta Key 75.7°F 74.3°F
Clearwater Beach 75.6°F 73.5°F
Cocoa Beach 75.1°F 73.9°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
SW 6 mph
Feels like: +48°F
Precip.: 0%
Places in USA:
Name
°F
+36°F
+77°F
+77°F
+64°F
+66°F
+72°F
+75°F
+73°F
+28°F
+61°F
+57°F
+64°F
+63°F
+57°F
+34°F
24 Hours Forecast
St. Simons Island
Local time: 21:25
December 17, wednesday
0000
46°F
SW
5 mph
0300
48°F
SW
5 mph
0600
48°F
S
6 mph
0900
52°F
S
5 mph
1200
57°F
S
6 mph
1500
61°F
SW
6 mph
1800
61°F
SW
6 mph
2100
59°F
SW
6 mph
Units of measurement: °C / °F