Weather · Saint Simons Island, United States
Saint Simons Island Weather in September
September in Saint Simons Island averages 28°C by day and 22°C at night, with about 155mm of rain. That makes it a reasonable time to visit.
Avg high
28°C
82°F
Avg low
22°C
72°F
Rainfall
155mm
#3 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Pack a rain jacket or travel umbrella, showers are frequent this month.
Timing a trip around the weather? A Local Friend in Saint Simons Island builds it around the season for you.