Monthly Historical AveragesSullivan's Island, SC
Average Temperature
High
22°
Feels 22
Low
15°
Feels 14
Average Precipitation
8 Days
64.3mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, April 2, 2026
Day
21°Feels 21
Wind
17 km/h E
Gust
26 km/h
Humidity
66%
P.O.P
10%
Night
19°Feels 19
Wind
15 km/h SE
Gust
23 km/h
Humidity
89%
P.O.P
10%
Historical AveragesApr 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity