Discover St. Simons Island
St. Simons Island is a beach resort located 10 miles from Brunswick, GA. Visitors looking for fun outdoor activities and a relaxing beach getaway will find it here in St. Simons Island, Georgia.
Live Webcams
Check out the live webcams in St. Simons Island, GA enjoy scenic views in and around this popular beach destination.
Maps & Weather
Map of nearby beaches, popular coastal towns and average weather temperatures.
St. Simons Island, Georgia Average Temperatures
Use this weather chart as a guide to view the average air and ocean temperatures in St. Simons Island, GA.
The average air temperature in the summer varies between 85-90 degrees.
The average ocean temperature in the summer varies between 80-85 degrees.
| Average High | Average Low | Average Ocean Temp | |
|---|---|---|---|
| January | 62 | 43 | 53 |
| February | 65 | 46 | 54 |
| March | 70 | 51 | 60 |
| April | 76 | 57 | 70 |
| May | 82 | 65 | 75 |
| June | 87 | 72 | 80 |
| July | 90 | 74 | 84 |
| August | 89 | 74 | 85 |
| September | 85 | 72 | 81 |
| October | 79 | 64 | 74 |
| November | 71 | 54 | 65 |
| December | 64 | 46 | 56 |
Average high, low and ocean temperatures in St. Simons Island. Sources: Accuweather, Weather.com, NOAA Climate.gov.
