World Resorts USA St. Simons Island Weather

St. Simons Island 7 Days Forecast

09.04
thu
Day
64°F
SW 21 mph
Precip.
0%
Night
64°F
SW 16 mph
Precip.
0%
10.04
fri
Day
64°F
SW 16 mph
Precip.
0%
Night
66°F
W 8 mph
Precip.
0%
11.04
sat
Day
70°F
SW 11 mph
Precip.
0%
Night
63°F
NW 6 mph
Precip.
0%
12.04
sun
Day
73°F
W 9 mph
Precip.
0%
Night
64°F
NW 7 mph
Precip.
0%
13.04
mon
Day
73°F
NW 7 mph
Precip.
0%
Night
66°F
N 8 mph
Precip.
0%
14.04
tue
Day
75°F
N 8 mph
Precip.
0%
Night
68°F
N 11 mph
Precip.
0%
15.04
wed
Day
75°F
N 8 mph
Precip.
0%
Night
68°F
N 11 mph
Precip.
0%

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.

Air temperature in St. Simons Island, °F

Precipitation total in St. Simons Island, in.

* Charts above show average data for the last 3 years.

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 64.1 °F
Rainiest months:
August 5 days
July 5 days
September 4 days
Windiest months:
February 6.9 mph
January 6.9 mph
December 6.8 mph

St. Simons Island on a weather map

Current weather
05:32
St. Simons Island
+61°F
SW 17 mph
Feels like: +61°F
Precip.: 100%
Places in USA:
Name
°F
Washington
+37°F
Hawaii
+72°F
Honolulu
+72°F
Las Vegas
+68°F
Los Angeles
+59°F
Miami
+70°F
Miami Beach
+72°F
Maui
+68°F
New York
+34°F
San Diego
+61°F
San Francisco
+55°F
Sarasota
+66°F
Tampa
+66°F
Houston
+63°F
Chicago
+50°F
all places
24 Hours Forecast
St. Simons Island
Local time: 05:32
April 09, thursday
0600
61°F
SW
17 mph
0900
63°F
SW
22 mph
1200
64°F
SW
21 mph
1500
68°F
SW
21 mph
1800
68°F
SW
19 mph
2100
64°F
SW
17 mph
April 10, friday
0000
64°F
SW
16 mph
0300
63°F
SW
14 mph
Units of measurement: °C / °F